36921601 has 4 divisors (see below), whose sum is σ = 38526912. Its totient is φ = 35316292.

The previous prime is 36921593. The next prime is 36921613. The reversal of 36921601 is 10612963.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36921601 - 2³ = 36921593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36921601.

It is not an unprimeable number, because it can be changed into a prime (36921641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802621 + ... + 802666.

It is an arithmetic number, because the mean of its divisors is an integer number (9631728).

Almost surely, 2^36921601 is an apocalyptic number.

It is an amenable number.

36921601 is a deficient number, since it is larger than the sum of its proper divisors (1605311).

36921601 is a wasteful number, since it uses less digits than its factorization.

36921601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605310.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 36921601 is about 6076.3147548494. The cubic root of 36921601 is about 332.9866648100.

The spelling of 36921601 in words is "thirty-six million, nine hundred twenty-one thousand, six hundred one".