36665872 has 40 divisors (see below), whose sum is σ = 75771936. Its totient is φ = 17127936.

The previous prime is 36665861. The next prime is 36665897. The reversal of 36665872 is 27856663.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43923 + ... + 44749.

Almost surely, 2^36665872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36665872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37885968).

36665872 is an abundant number, since it is smaller than the sum of its proper divisors (39106064).

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

36665872 is a wasteful number, since it uses less digits than its factorization.

36665872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1009 counting only the distinct ones).

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

The square root of 36665872 is about 6055.2350903991. The cubic root of 36665872 is about 332.2160977599.

The spelling of 36665872 in words is "thirty-six million, six hundred sixty-five thousand, eight hundred seventy-two".