72887236 has 12 divisors (see below), whose sum is σ = 130519312. Its totient is φ = 35596008.

The previous prime is 72887183. The next prime is 72887239. The reversal of 72887236 is 63278827.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 72887192 and 72887201.

It is not an unprimeable number, because it can be changed into a prime (72887239) 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 3 ways as a sum of consecutive naturals, for example, 211710 + ... + 212053.

Almost surely, 2^72887236 is an apocalyptic number.

It is an amenable number.

72887236 is a deficient number, since it is larger than the sum of its proper divisors (57632076).

72887236 is a wasteful number, since it uses less digits than its factorization.

72887236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423810 (or 423808 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 72887236 is about 8537.4021809916. The cubic root of 72887236 is about 417.7186128449.

The spelling of 72887236 in words is "seventy-two million, eight hundred eighty-seven thousand, two hundred thirty-six".