40807687 has 16 divisors (see below), whose sum is σ = 44953600. Its totient is φ = 36897120.

The previous prime is 40807661. The next prime is 40807693. The reversal of 40807687 is 78670804.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40807687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40807607) 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, 46093 + ... + 46969.

It is an arithmetic number, because the mean of its divisors is an integer number (2809600).

Almost surely, 2^40807687 is an apocalyptic number.

40807687 is a deficient number, since it is larger than the sum of its proper divisors (4145913).

40807687 is a wasteful number, since it uses less digits than its factorization.

40807687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 40807687 is about 6388.0894639947. The cubic root of 40807687 is about 344.2817431109.

The spelling of 40807687 in words is "forty million, eight hundred seven thousand, six hundred eighty-seven".