72408855 has 8 divisors (see below), whose sum is σ = 115854192. Its totient is φ = 38618048.

The previous prime is 72408841. The next prime is 72408857. The reversal of 72408855 is 55880427.

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 72408855 - 2⁷ = 72408727 is a prime.

It is a super-2 number, since 2×72408855² = 10486084564822050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72408857) 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, 2413614 + ... + 2413643.

It is an arithmetic number, because the mean of its divisors is an integer number (14481774).

Almost surely, 2^72408855 is an apocalyptic number.

72408855 is a deficient number, since it is larger than the sum of its proper divisors (43445337).

72408855 is a wasteful number, since it uses less digits than its factorization.

72408855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827265.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 72408855 is about 8509.3392810488. The cubic root of 72408855 is about 416.8027349380.

The spelling of 72408855 in words is "seventy-two million, four hundred eight thousand, eight hundred fifty-five".