72798510 has 16 divisors (see below), whose sum is σ = 174716496. Its totient is φ = 19412928.

The previous prime is 72798457. The next prime is 72798511. The reversal of 72798510 is 1589727.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72798511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213279 + ... + 1213338.

It is an arithmetic number, because the mean of its divisors is an integer number (10919781).

Almost surely, 2^72798510 is an apocalyptic number.

72798510 is an abundant number, since it is smaller than the sum of its proper divisors (101917986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72798510 is a wasteful number, since it uses less digits than its factorization.

72798510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426627.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 72798510 is about 8532.2042872871. The cubic root of 72798510 is about 417.5490470304.

The spelling of 72798510 in words is "seventy-two million, seven hundred ninety-eight thousand, five hundred ten".