72537236 has 24 divisors (see below), whose sum is σ = 131658240. Its totient is φ = 34927200.

The previous prime is 72537233. The next prime is 72537251. The reversal of 72537236 is 63273527.

It is a junction number, because it is equal to n+sod(n) for n = 72537196 and 72537205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72537233) 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, 72701 + ... + 73691.

It is an arithmetic number, because the mean of its divisors is an integer number (5485760).

Almost surely, 2^72537236 is an apocalyptic number.

It is an amenable number.

72537236 is a deficient number, since it is larger than the sum of its proper divisors (59121004).

72537236 is a wasteful number, since it uses less digits than its factorization.

72537236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1653 counting only the distinct ones).

The product of its digits is 52920, while the sum is 35.

The square root of 72537236 is about 8516.8794754887. The cubic root of 72537236 is about 417.0489201081.

The spelling of 72537236 in words is "seventy-two million, five hundred thirty-seven thousand, two hundred thirty-six".