72934281 has 24 divisors (see below), whose sum is σ = 120741504. Its totient is φ = 41558400.

The previous prime is 72934261. The next prime is 72934283. The reversal of 72934281 is 18243927.

It is not a de Polignac number, because 72934281 - 2⁵ = 72934249 is a prime.

It is a super-2 number, since 2×72934281² = 10638818689973922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72934283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23820 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (5030896).

Almost surely, 2^72934281 is an apocalyptic number.

It is an amenable number.

72934281 is a deficient number, since it is larger than the sum of its proper divisors (47807223).

72934281 is a wasteful number, since it uses less digits than its factorization.

72934281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3298 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 72934281 is about 8540.1569657706. The cubic root of 72934281 is about 417.8084655485.

The spelling of 72934281 in words is "seventy-two million, nine hundred thirty-four thousand, two hundred eighty-one".