79431263 has 8 divisors (see below), whose sum is σ = 80508960. Its totient is φ = 78359040.

The previous prime is 79431257. The next prime is 79431271. The reversal of 79431263 is 36213497.

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 79431263 - 2¹² = 79427167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79431223) 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, 33683 + ... + 35963.

It is an arithmetic number, because the mean of its divisors is an integer number (10063620).

Almost surely, 2^79431263 is an apocalyptic number.

79431263 is a deficient number, since it is larger than the sum of its proper divisors (1077697).

79431263 is a wasteful number, since it uses less digits than its factorization.

79431263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its digits is 27216, while the sum is 35.

The square root of 79431263 is about 8912.4218369644. The cubic root of 79431263 is about 429.8634197560.

The spelling of 79431263 in words is "seventy-nine million, four hundred thirty-one thousand, two hundred sixty-three".