36865389 has 16 divisors (see below), whose sum is σ = 55954944. Its totient is φ = 21370800.

The previous prime is 36865349. The next prime is 36865391. The reversal of 36865389 is 98356863.

It is not a de Polignac number, because 36865389 - 2⁷ = 36865261 is a prime.

It is a super-2 number, since 2×36865389² = 2718113812242642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36865349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23527 + ... + 25044.

It is an arithmetic number, because the mean of its divisors is an integer number (3497184).

Almost surely, 2^36865389 is an apocalyptic number.

It is an amenable number.

36865389 is a deficient number, since it is larger than the sum of its proper divisors (19089555).

36865389 is a wasteful number, since it uses less digits than its factorization.

36865389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48608.

The product of its digits is 933120, while the sum is 48.

The square root of 36865389 is about 6071.6874919581. The cubic root of 36865389 is about 332.8175916654.

The spelling of 36865389 in words is "thirty-six million, eight hundred sixty-five thousand, three hundred eighty-nine".