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79230997 is a prime number
BaseRepresentation
bin1001011100011…
…11100000010101
312112002100111101
410232033200111
5130240342442
611510110101
71651311106
oct456174025
9175070441
1079230997
11407a646a
122264b331
1313551361
14a7463ad
156e50cb7
hex4b8f815

79230997 has 2 divisors, whose sum is σ = 79230998. Its totient is φ = 79230996.

The previous prime is 79230971. The next prime is 79231003. The reversal of 79230997 is 79903297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 27520516 = 7191^2 + 5246^2 .

It is an emirp because it is prime and its reverse (79903297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79230997 - 27 = 79230869 is a prime.

It is a super-2 number, since 2×792309972 = 12555101771228018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79230797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39615498 + 39615499.

It is an arithmetic number, because the mean of its divisors is an integer number (39615499).

Almost surely, 279230997 is an apocalyptic number.

It is an amenable number.

79230997 is a deficient number, since it is larger than the sum of its proper divisors (1).

79230997 is an equidigital number, since it uses as much as digits as its factorization.

79230997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 79230997 is about 8901.1795285793. The cubic root of 79230997 is about 429.5018514649.

The spelling of 79230997 in words is "seventy-nine million, two hundred thirty thousand, nine hundred ninety-seven".