72536472 has 48 divisors (see below), whose sum is σ = 203734440. Its totient is φ = 24178176.

The previous prime is 72536461. The next prime is 72536473. The reversal of 72536472 is 27463527.

It is a happy number.

72536472 is a `hidden beast` number, since 7 + 2 + 5 + 3 + 647 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72536473) 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 11 ways as a sum of consecutive naturals, for example, 16713 + ... + 20600.

Almost surely, 2^72536472 is an apocalyptic number.

72536472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72536472 is an abundant number, since it is smaller than the sum of its proper divisors (131197968).

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

72536472 is a wasteful number, since it uses less digits than its factorization.

72536472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37334 (or 37318 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 72536472 is about 8516.8346232623. The cubic root of 72536472 is about 417.0474559107.

Adding to 72536472 its reverse (27463527), we get a palindrome (99999999).

The spelling of 72536472 in words is "seventy-two million, five hundred thirty-six thousand, four hundred seventy-two".