79540667 has 2 divisors, whose sum is σ = 79540668. Its totient is φ = 79540666.

The previous prime is 79540589. The next prime is 79540717. The reversal of 79540667 is 76604597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79540667 - 2¹⁸ = 79278523 is a prime.

It is not a weakly prime, because it can be changed into another prime (79540267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39770333 + 39770334.

It is an arithmetic number, because the mean of its divisors is an integer number (39770334).

Almost surely, 2^79540667 is an apocalyptic number.

79540667 is a deficient number, since it is larger than the sum of its proper divisors (1).

79540667 is an equidigital number, since it uses as much as digits as its factorization.

79540667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 79540667 is about 8918.5574506195. The cubic root of 79540667 is about 430.0606855040.

The spelling of 79540667 in words is "seventy-nine million, five hundred forty thousand, six hundred sixty-seven".