36660621 has 8 divisors (see below), whose sum is σ = 48910240. Its totient is φ = 24425712.

The previous prime is 36660607. The next prime is 36660629. The reversal of 36660621 is 12606663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36660621 - 2¹⁵ = 36627853 is a prime.

It is a super-2 number, since 2×36660621² = 2688002264211282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36660629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211 + ... + 10023.

It is an arithmetic number, because the mean of its divisors is an integer number (6113780).

Almost surely, 2^36660621 is an apocalyptic number.

It is an amenable number.

36660621 is a deficient number, since it is larger than the sum of its proper divisors (12249619).

36660621 is a wasteful number, since it uses less digits than its factorization.

36660621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 36660621 is about 6054.8014831206. The cubic root of 36660621 is about 332.2002378706.

The spelling of 36660621 in words is "thirty-six million, six hundred sixty thousand, six hundred twenty-one".