36286921 has 4 divisors (see below), whose sum is σ = 39585744. Its totient is φ = 32988100.

The previous prime is 36286919. The next prime is 36286931. The reversal of 36286921 is 12968263.

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 36286921 - 2¹ = 36286919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36286931) 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, 1649395 + ... + 1649416.

It is an arithmetic number, because the mean of its divisors is an integer number (9896436).

Almost surely, 2^36286921 is an apocalyptic number.

It is an amenable number.

36286921 is a deficient number, since it is larger than the sum of its proper divisors (3298823).

36286921 is a wasteful number, since it uses less digits than its factorization.

36286921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298822.

The product of its digits is 31104, while the sum is 37.

The square root of 36286921 is about 6023.8626312359. The cubic root of 36286921 is about 331.0676197408.

The spelling of 36286921 in words is "thirty-six million, two hundred eighty-six thousand, nine hundred twenty-one".