72534911 has 8 divisors (see below), whose sum is σ = 75335760. Its totient is φ = 69778368.

The previous prime is 72534883. The next prime is 72534941. The reversal of 72534911 is 11943527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72534911 is a prime.

It is a super-2 number, since 2×72534911² = 10522626627555842, 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 (72534941) 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, 7721 + ... + 14306.

It is an arithmetic number, because the mean of its divisors is an integer number (9416970).

Almost surely, 2^72534911 is an apocalyptic number.

72534911 is a deficient number, since it is larger than the sum of its proper divisors (2800849).

72534911 is a wasteful number, since it uses less digits than its factorization.

72534911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22153.

The product of its digits is 7560, while the sum is 32.

The square root of 72534911 is about 8516.7429807409. The cubic root of 72534911 is about 417.0444642398.

The spelling of 72534911 in words is "seventy-two million, five hundred thirty-four thousand, nine hundred eleven".