72376533 has 6 divisors (see below), whose sum is σ = 104543894. Its totient is φ = 48251016.

The previous prime is 72376523. The next prime is 72376541. The reversal of 72376533 is 33567327.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 20277009 = 7218^2 + 4503^2 .

It is not a de Polignac number, because 72376533 - 2⁴ = 72376517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72376523) 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, 4020910 + ... + 4020927.

Almost surely, 2^72376533 is an apocalyptic number.

It is an amenable number.

72376533 is a deficient number, since it is larger than the sum of its proper divisors (32167361).

72376533 is a wasteful number, since it uses less digits than its factorization.

72376533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041843 (or 8041840 counting only the distinct ones).

The product of its digits is 79380, while the sum is 36.

The square root of 72376533 is about 8507.4398616740. The cubic root of 72376533 is about 416.7407079799.

The spelling of 72376533 in words is "seventy-two million, three hundred seventy-six thousand, five hundred thirty-three".