36665728 has 32 divisors (see below), whose sum is σ = 79688520. Its totient is φ = 16665600.

The previous prime is 36665711. The next prime is 36665737. The reversal of 36665728 is 82756663.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11613 + ... + 14428.

Almost surely, 2^36665728 is an apocalyptic number.

It is an amenable number.

36665728 is an abundant number, since it is smaller than the sum of its proper divisors (43022792).

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

36665728 is a wasteful number, since it uses less digits than its factorization.

36665728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26066 (or 26054 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 36665728 is about 6055.2231998499. The cubic root of 36665728 is about 332.2156628488.

The spelling of 36665728 in words is "thirty-six million, six hundred sixty-five thousand, seven hundred twenty-eight".