72534887 has 8 divisors (see below), whose sum is σ = 75131040. Its totient is φ = 69945120.

The previous prime is 72534883. The next prime is 72534941. The reversal of 72534887 is 78843527.

It is a happy number.

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 72534887 - 2² = 72534883 is a prime.

It is a super-2 number, since 2×72534887² = 10522619664205538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72534883) 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, 43937 + ... + 45557.

It is an arithmetic number, because the mean of its divisors is an integer number (9391380).

Almost surely, 2^72534887 is an apocalyptic number.

72534887 is a deficient number, since it is larger than the sum of its proper divisors (2596153).

72534887 is a wasteful number, since it uses less digits than its factorization.

72534887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193.

The product of its digits is 376320, while the sum is 44.

The square root of 72534887 is about 8516.7415717515. The cubic root of 72534887 is about 417.0444182433.

The spelling of 72534887 in words is "seventy-two million, five hundred thirty-four thousand, eight hundred eighty-seven".