72801654 has 32 divisors (see below), whose sum is σ = 153653760. Its totient is φ = 22932000.

The previous prime is 72801643. The next prime is 72801683. The reversal of 72801654 is 45610827.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79459 + ... + 80369.

It is an arithmetic number, because the mean of its divisors is an integer number (4801680).

Almost surely, 2^72801654 is an apocalyptic number.

72801654 is an abundant number, since it is smaller than the sum of its proper divisors (80852106).

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

72801654 is a wasteful number, since it uses less digits than its factorization.

72801654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 72801654 is about 8532.3885284251. The cubic root of 72801654 is about 417.5550579378. Note that the first 3 decimals are identical.

The spelling of 72801654 in words is "seventy-two million, eight hundred one thousand, six hundred fifty-four".