72287037 has 24 divisors (see below), whose sum is σ = 106589184. Its totient is φ = 47196864.

The previous prime is 72287029. The next prime is 72287041. The reversal of 72287037 is 73078227.

It is not a de Polignac number, because 72287037 - 2³ = 72287029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72286992 and 72287010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72287087) 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, 188548 + ... + 188930.

It is an arithmetic number, because the mean of its divisors is an integer number (4441216).

Almost surely, 2^72287037 is an apocalyptic number.

It is an amenable number.

72287037 is a deficient number, since it is larger than the sum of its proper divisors (34302147).

72287037 is a wasteful number, since it uses less digits than its factorization.

72287037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 72287037 is about 8502.1783679243. The cubic root of 72287037 is about 416.5688658636.

The spelling of 72287037 in words is "seventy-two million, two hundred eighty-seven thousand, thirty-seven".