72547036 has 12 divisors (see below), whose sum is σ = 129353112. Its totient is φ = 35589008.

The previous prime is 72546989. The next prime is 72547039. The reversal of 72547036 is 63074527.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 72547036 parts by 12045 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 72546992 and 72547010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72547039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170890 + ... + 171313.

It is an arithmetic number, because the mean of its divisors is an integer number (10779426).

Almost surely, 2^72547036 is an apocalyptic number.

It is an amenable number.

72547036 is a deficient number, since it is larger than the sum of its proper divisors (56806076).

72547036 is a wasteful number, since it uses less digits than its factorization.

72547036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342260 (or 342258 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 72547036 is about 8517.4547841477. The cubic root of 72547036 is about 417.0677007859.

The spelling of 72547036 in words is "seventy-two million, five hundred forty-seven thousand, thirty-six".