72336536 has 8 divisors (see below), whose sum is σ = 135631020. Its totient is φ = 36168264.

The previous prime is 72336529. The next prime is 72336557. The reversal of 72336536 is 63563327.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72336496 and 72336505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521026 + ... + 4521041.

Almost surely, 2^72336536 is an apocalyptic number.

It is an amenable number.

72336536 is a deficient number, since it is larger than the sum of its proper divisors (63294484).

72336536 is a wasteful number, since it uses less digits than its factorization.

72336536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042073 (or 9042069 counting only the distinct ones).

The product of its digits is 68040, while the sum is 35.

The square root of 72336536 is about 8505.0888296361. The cubic root of 72336536 is about 416.6639268798.

The spelling of 72336536 in words is "seventy-two million, three hundred thirty-six thousand, five hundred thirty-six".