79902705 has 8 divisors (see below), whose sum is σ = 127844352. Its totient is φ = 42614768.

The previous prime is 79902671. The next prime is 79902709. The reversal of 79902705 is 50720997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79902705 - 2¹¹ = 79900657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79902709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2663409 + ... + 2663438.

It is an arithmetic number, because the mean of its divisors is an integer number (15980544).

Almost surely, 2^79902705 is an apocalyptic number.

It is an amenable number.

79902705 is a deficient number, since it is larger than the sum of its proper divisors (47941647).

79902705 is a wasteful number, since it uses less digits than its factorization.

79902705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326855.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 79902705 is about 8938.8312994485. The cubic root of 79902705 is about 430.7121873747.

The spelling of 79902705 in words is "seventy-nine million, nine hundred two thousand, seven hundred five".