79775107 has 2 divisors, whose sum is σ = 79775108. Its totient is φ = 79775106.

The previous prime is 79775099. The next prime is 79775131. The reversal of 79775107 is 70157797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79775107 - 2³ = 79775099 is a prime.

It is a super-2 number, since 2×79775107² = 12728135393722898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79775197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39887553 + 39887554.

It is an arithmetic number, because the mean of its divisors is an integer number (39887554).

Almost surely, 2^79775107 is an apocalyptic number.

79775107 is a deficient number, since it is larger than the sum of its proper divisors (1).

79775107 is an equidigital number, since it uses as much as digits as its factorization.

79775107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108045, while the sum is 43.

The square root of 79775107 is about 8931.6911612527. The cubic root of 79775107 is about 430.4827946646.

The spelling of 79775107 in words is "seventy-nine million, seven hundred seventy-five thousand, one hundred seven".