79754069 has 2 divisors, whose sum is σ = 79754070. Its totient is φ = 79754068.

The previous prime is 79754063. The next prime is 79754093. The reversal of 79754069 is 96045797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70980625 + 8773444 = 8425^2 + 2962^2 .

It is an emirp because it is prime and its reverse (96045797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79754069 - 2⁸ = 79753813 is a prime.

It is a super-2 number, since 2×79754069² = 12721423044113522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79754063) 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, 39877034 + 39877035.

It is an arithmetic number, because the mean of its divisors is an integer number (39877035).

Almost surely, 2^79754069 is an apocalyptic number.

It is an amenable number.

79754069 is a deficient number, since it is larger than the sum of its proper divisors (1).

79754069 is an equidigital number, since it uses as much as digits as its factorization.

79754069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 79754069 is about 8930.5133671027. The cubic root of 79754069 is about 430.4449495539. Note that the first 3 decimals are identical.

The spelling of 79754069 in words is "seventy-nine million, seven hundred fifty-four thousand, sixty-nine".