36420931 has 4 divisors (see below), whose sum is σ = 36438664. Its totient is φ = 36403200.

The previous prime is 36420841. The next prime is 36420949. The reversal of 36420931 is 13902463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36420931 - 2²⁵ = 2866499 is a prime.

It is a super-2 number, since 2×36420931² = 2652968429813522, which contains 22 as substring.

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 36420931.

It is not an unprimeable number, because it can be changed into a prime (36420031) 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, 5310 + ... + 10051.

It is an arithmetic number, because the mean of its divisors is an integer number (9109666).

Almost surely, 2^36420931 is an apocalyptic number.

36420931 is a deficient number, since it is larger than the sum of its proper divisors (17733).

36420931 is a wasteful number, since it uses less digits than its factorization.

36420931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 36420931 is about 6034.9756420387. The cubic root of 36420931 is about 331.4746706038.

The spelling of 36420931 in words is "thirty-six million, four hundred twenty thousand, nine hundred thirty-one".