72749033 has 8 divisors (see below), whose sum is σ = 85824000. Its totient is φ = 60344640.

The previous prime is 72749021. The next prime is 72749051. The reversal of 72749033 is 33094727.

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 72749033 - 2⁶ = 72748969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72748984 and 72749002.

It is not an unprimeable number, because it can be changed into a prime (72749333) 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, 167408 + ... + 167841.

It is an arithmetic number, because the mean of its divisors is an integer number (10728000).

Almost surely, 2^72749033 is an apocalyptic number.

It is an amenable number.

72749033 is a deficient number, since it is larger than the sum of its proper divisors (13074967).

72749033 is a wasteful number, since it uses less digits than its factorization.

72749033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335287.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 72749033 is about 8529.3043678837. The cubic root of 72749033 is about 417.4544308255.

The spelling of 72749033 in words is "seventy-two million, seven hundred forty-nine thousand, thirty-three".