72265833 has 6 divisors (see below), whose sum is σ = 104383994. Its totient is φ = 48177216.

The previous prime is 72265829. The next prime is 72265841. The reversal of 72265833 is 33856227.

72265833 is a `hidden beast` number, since 72 + 2 + 6 + 583 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37124649 + 35141184 = 6093^2 + 5928^2 .

It is not a de Polignac number, because 72265833 - 2² = 72265829 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72265133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4014760 + ... + 4014777.

Almost surely, 2^72265833 is an apocalyptic number.

It is an amenable number.

72265833 is a deficient number, since it is larger than the sum of its proper divisors (32118161).

72265833 is a wasteful number, since it uses less digits than its factorization.

72265833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029543 (or 8029540 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 72265833 is about 8500.9313019222. The cubic root of 72265833 is about 416.5281310818.

The spelling of 72265833 in words is "seventy-two million, two hundred sixty-five thousand, eight hundred thirty-three".