79630431 has 16 divisors (see below), whose sum is σ = 112608000. Its totient is φ = 49880448.

The previous prime is 79630429. The next prime is 79630451. The reversal of 79630431 is 13403697.

It is not a de Polignac number, because 79630431 - 2¹ = 79630429 is a prime.

It is a super-2 number, since 2×79630431² = 12682011082491522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79630392 and 79630401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79630451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46020 + ... + 47718.

It is an arithmetic number, because the mean of its divisors is an integer number (7038000).

Almost surely, 2^79630431 is an apocalyptic number.

79630431 is a deficient number, since it is larger than the sum of its proper divisors (32977569).

79630431 is a wasteful number, since it uses less digits than its factorization.

79630431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 79630431 is about 8923.5884598070. The cubic root of 79630431 is about 430.2224034277. Note that the first 3 decimals are identical.

The spelling of 79630431 in words is "seventy-nine million, six hundred thirty thousand, four hundred thirty-one".