36960821 has 4 divisors (see below), whose sum is σ = 37123872. Its totient is φ = 36797772.

The previous prime is 36960811. The next prime is 36960823. The reversal of 36960821 is 12806963.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12806963 = 13 ⋅985151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36960821 is a prime.

It is a super-2 number, since 2×36960821² = 2732204577988082, 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 (36960823) 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, 81185 + ... + 81638.

It is an arithmetic number, because the mean of its divisors is an integer number (9280968).

Almost surely, 2^36960821 is an apocalyptic number.

It is an amenable number.

36960821 is a deficient number, since it is larger than the sum of its proper divisors (163051).

36960821 is a wasteful number, since it uses less digits than its factorization.

36960821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163050.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 36960821 is about 6079.5411833460. The cubic root of 36960821 is about 333.1045282028.

The spelling of 36960821 in words is "thirty-six million, nine hundred sixty thousand, eight hundred twenty-one".