72535990 has 8 divisors (see below), whose sum is σ = 130564800. Its totient is φ = 29014392.

The previous prime is 72535973. The next prime is 72536017. The reversal of 72535990 is 9953527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72535990² = 10522939690560200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626790 + ... + 3626809.

It is an arithmetic number, because the mean of its divisors is an integer number (16320600).

Almost surely, 2^72535990 is an apocalyptic number.

72535990 is a deficient number, since it is larger than the sum of its proper divisors (58028810).

72535990 is a wasteful number, since it uses less digits than its factorization.

72535990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253606.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 72535990 is about 8516.8063263174. The cubic root of 72535990 is about 417.0465321578.

The spelling of 72535990 in words is "seventy-two million, five hundred thirty-five thousand, nine hundred ninety".