72489933 has 24 divisors (see below), whose sum is σ = 107452800. Its totient is φ = 47070144.

The previous prime is 72489931. The next prime is 72489961. The reversal of 72489933 is 33998427.

It is a happy number.

It is not a de Polignac number, because 72489933 - 2¹ = 72489931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72489931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172798 + ... + 173216.

It is an arithmetic number, because the mean of its divisors is an integer number (4477200).

Almost surely, 2^72489933 is an apocalyptic number.

It is an amenable number.

72489933 is a deficient number, since it is larger than the sum of its proper divisors (34962867).

72489933 is a wasteful number, since it uses less digits than its factorization.

72489933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 878 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 72489933 is about 8514.1020078456. The cubic root of 72489933 is about 416.9582450471.

The spelling of 72489933 in words is "seventy-two million, four hundred eighty-nine thousand, nine hundred thirty-three".