72745933 has 8 divisors (see below), whose sum is σ = 80869376. Its totient is φ = 64983600.

The previous prime is 72745921. The next prime is 72745943. The reversal of 72745933 is 33954727.

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

It is a cyclic number.

It is not a de Polignac number, because 72745933 - 2⁵ = 72745901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72745903) 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, 89853 + ... + 90658.

It is an arithmetic number, because the mean of its divisors is an integer number (10108672).

Almost surely, 2^72745933 is an apocalyptic number.

It is an amenable number.

72745933 is a deficient number, since it is larger than the sum of its proper divisors (8123443).

72745933 is a wasteful number, since it uses less digits than its factorization.

72745933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180555.

The product of its digits is 158760, while the sum is 40.

The square root of 72745933 is about 8529.1226395216. The cubic root of 72745933 is about 417.4485011837.

The spelling of 72745933 in words is "seventy-two million, seven hundred forty-five thousand, nine hundred thirty-three".