79872357 has 8 divisors (see below), whose sum is σ = 106539840. Its totient is φ = 53226560.

The previous prime is 79872349. The next prime is 79872389. The reversal of 79872357 is 75327897.

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 79872357 - 2³ = 79872349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79872347) 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 in 7 ways as a sum of consecutive naturals, for example, 7744 + ... + 14822.

It is an arithmetic number, because the mean of its divisors is an integer number (13317480).

Almost surely, 2^79872357 is an apocalyptic number.

It is an amenable number.

79872357 is a deficient number, since it is larger than the sum of its proper divisors (26667483).

79872357 is a wasteful number, since it uses less digits than its factorization.

79872357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10843.

The product of its digits is 740880, while the sum is 48.

The square root of 79872357 is about 8937.1336008812. The cubic root of 79872357 is about 430.6576505949.

The spelling of 79872357 in words is "seventy-nine million, eight hundred seventy-two thousand, three hundred fifty-seven".