72798579 has 24 divisors (see below), whose sum is σ = 121704960. Its totient is φ = 41069808.

The previous prime is 72798577. The next prime is 72798581. The reversal of 72798579 is 97589727.

It is an interprime number because it is at equal distance from previous prime (72798577) and next prime (72798581).

It is not a de Polignac number, because 72798579 - 2¹ = 72798577 is a prime.

It is a super-4 number, since 4×72798579⁴ (a number of 33 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (72798577) 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, 2337 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (5071040).

Almost surely, 2^72798579 is an apocalyptic number.

72798579 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

72798579 is a deficient number, since it is larger than the sum of its proper divisors (48906381).

72798579 is a wasteful number, since it uses less digits than its factorization.

72798579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14719 (or 14716 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 72798579 is about 8532.2083307899. The cubic root of 72798579 is about 417.5491789511.

The spelling of 72798579 in words is "seventy-two million, seven hundred ninety-eight thousand, five hundred seventy-nine".