72989594 has 8 divisors (see below), whose sum is σ = 112154868. Its totient is φ = 35604640.

The previous prime is 72989591. The next prime is 72989597. The reversal of 72989594 is 49598927.

It is an interprime number because it is at equal distance from previous prime (72989591) and next prime (72989597).

It can be written as a sum of positive squares in 2 ways, for example, as 65399569 + 7590025 = 8087^2 + 2755^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72989591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444977 + ... + 445140.

Almost surely, 2^72989594 is an apocalyptic number.

72989594 is a deficient number, since it is larger than the sum of its proper divisors (39165274).

72989594 is a wasteful number, since it uses less digits than its factorization.

72989594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890160.

The product of its digits is 1632960, while the sum is 53.

The square root of 72989594 is about 8543.3947585254. The cubic root of 72989594 is about 417.9140601540.

The spelling of 72989594 in words is "seventy-two million, nine hundred eighty-nine thousand, five hundred ninety-four".