72263833 has 4 divisors (see below), whose sum is σ = 73448548. Its totient is φ = 71079120.

The previous prime is 72263797. The next prime is 72263843. The reversal of 72263833 is 33836227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33836227 = 43 ⋅786889.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 68608089 = 1912^2 + 8283^2 .

It is a cyclic number.

It is not a de Polignac number, because 72263833 - 2²⁵ = 38709401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72263843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592266 + ... + 592387.

It is an arithmetic number, because the mean of its divisors is an integer number (18362137).

Almost surely, 2^72263833 is an apocalyptic number.

It is an amenable number.

72263833 is a deficient number, since it is larger than the sum of its proper divisors (1184715).

72263833 is a wasteful number, since it uses less digits than its factorization.

72263833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184714.

The product of its digits is 36288, while the sum is 34.

The square root of 72263833 is about 8500.8136669380. The cubic root of 72263833 is about 416.5242884916.

The spelling of 72263833 in words is "seventy-two million, two hundred sixty-three thousand, eight hundred thirty-three".