72603632 has 10 divisors (see below), whose sum is σ = 140669568. Its totient is φ = 36301808.

The previous prime is 72603631. The next prime is 72603647. The reversal of 72603632 is 23630627.

It is a junction number, because it is equal to n+sod(n) for n = 72603595 and 72603604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72603631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268848 + ... + 2268879.

Almost surely, 2^72603632 is an apocalyptic number.

It is an amenable number.

72603632 is a deficient number, since it is larger than the sum of its proper divisors (68065936).

72603632 is a wasteful number, since it uses less digits than its factorization.

72603632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537735 (or 4537729 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 72603632 is about 8520.7764904379. The cubic root of 72603632 is about 417.1761280418.

The spelling of 72603632 in words is "seventy-two million, six hundred three thousand, six hundred thirty-two".