72989343 has 40 divisors (see below), whose sum is σ = 125859360. Its totient is φ = 41290560.

The previous prime is 72989333. The next prime is 72989351. The reversal of 72989343 is 34398927.

It is a happy number.

It is not a de Polignac number, because 72989343 - 2⁵ = 72989311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72989303) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61213 + ... + 62393.

It is an arithmetic number, because the mean of its divisors is an integer number (3146484).

Almost surely, 2^72989343 is an apocalyptic number.

72989343 is a deficient number, since it is larger than the sum of its proper divisors (52870017).

72989343 is a wasteful number, since it uses less digits than its factorization.

72989343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1300 counting only the distinct ones).

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

The square root of 72989343 is about 8543.3800688018. The cubic root of 72989343 is about 417.9135811060.

It can be divided in two parts, 7298 and 9343, that added together give a square (16641 = 129²).

The spelling of 72989343 in words is "seventy-two million, nine hundred eighty-nine thousand, three hundred forty-three".