79934081 has 2 divisors, whose sum is σ = 79934082. Its totient is φ = 79934080.

The previous prime is 79934003. The next prime is 79934087. The reversal of 79934081 is 18043997.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79834225 + 99856 = 8935^2 + 316^2 .

It is an emirp because it is prime and its reverse (18043997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79934081 - 2¹⁸ = 79671937 is a prime.

It is a super-2 number, since 2×79934081² = 12778914610629122, which contains 22 as substring.

It is equal to p_4665776 and since 79934081 and 4665776 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (79934087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39967040 + 39967041.

It is an arithmetic number, because the mean of its divisors is an integer number (39967041).

Almost surely, 2^79934081 is an apocalyptic number.

It is an amenable number.

79934081 is a deficient number, since it is larger than the sum of its proper divisors (1).

79934081 is an equidigital number, since it uses as much as digits as its factorization.

79934081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 79934081 is about 8940.5861664658. The cubic root of 79934081 is about 430.7685570020.

The spelling of 79934081 in words is "seventy-nine million, nine hundred thirty-four thousand, eighty-one".