40479687 has 6 divisors (see below), whose sum is σ = 58470672. Its totient is φ = 26986452.

The previous prime is 40479667. The next prime is 40479713. The reversal of 40479687 is 78697404.

It is not a de Polignac number, because 40479687 - 2⁷ = 40479559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40479617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2248863 + ... + 2248880.

It is an arithmetic number, because the mean of its divisors is an integer number (9745112).

Almost surely, 2^40479687 is an apocalyptic number.

40479687 is a deficient number, since it is larger than the sum of its proper divisors (17990985).

40479687 is a wasteful number, since it uses less digits than its factorization.

40479687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497749 (or 4497746 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 40479687 is about 6362.3648905104. The cubic root of 40479687 is about 343.3568493858.

The spelling of 40479687 in words is "forty million, four hundred seventy-nine thousand, six hundred eighty-seven".