36640087 has 16 divisors (see below), whose sum is σ = 41004288. Its totient is φ = 32460480.

The previous prime is 36640067. The next prime is 36640091. The reversal of 36640087 is 78004663.

It is a cyclic number.

It is not a de Polignac number, because 36640087 - 2⁷ = 36639959 is a prime.

It is a Duffinian number.

36640087 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36640007) 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, 82488 + ... + 82930.

It is an arithmetic number, because the mean of its divisors is an integer number (2562768).

Almost surely, 2^36640087 is an apocalyptic number.

36640087 is a deficient number, since it is larger than the sum of its proper divisors (4364201).

36640087 is a wasteful number, since it uses less digits than its factorization.

36640087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 36640087 is about 6053.1055665666. The cubic root of 36640087 is about 332.1382033362.

The spelling of 36640087 in words is "thirty-six million, six hundred forty thousand, eighty-seven".