72889968 has 40 divisors (see below), whose sum is σ = 189110416. Its totient is φ = 24192000.

The previous prime is 72889951. The next prime is 72889969. The reversal of 72889968 is 86998827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72889969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8418 + ... + 14718.

Almost surely, 2^72889968 is an apocalyptic number.

It is an amenable number.

72889968 is an abundant number, since it is smaller than the sum of its proper divisors (116220448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72889968 is a wasteful number, since it uses less digits than its factorization.

72889968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553 (or 6547 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The square root of 72889968 is about 8537.5621813255. The cubic root of 72889968 is about 417.7238318337.

The spelling of 72889968 in words is "seventy-two million, eight hundred eighty-nine thousand, nine hundred sixty-eight".