79872903 has 24 divisors (see below), whose sum is σ = 132487680. Its totient is φ = 45858960.

The previous prime is 79872893. The next prime is 79872913. The reversal of 79872903 is 30927897.

It is an interprime number because it is at equal distance from previous prime (79872893) and next prime (79872913).

It is not a de Polignac number, because 79872903 - 2⁶ = 79872839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79872913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19351 + ... + 23112.

It is an arithmetic number, because the mean of its divisors is an integer number (5520320).

Almost surely, 2^79872903 is an apocalyptic number.

79872903 is a deficient number, since it is larger than the sum of its proper divisors (52614777).

79872903 is a wasteful number, since it uses less digits than its factorization.

79872903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42499 (or 42496 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 79872903 is about 8937.1641475358. The cubic root of 79872903 is about 430.6586319046.

The spelling of 79872903 in words is "seventy-nine million, eight hundred seventy-two thousand, nine hundred three".