39886975 has 12 divisors (see below), whose sum is σ = 49630504. Its totient is φ = 31799520.

The previous prime is 39886961. The next prime is 39886993. The reversal of 39886975 is 57968893.

It is a happy number.

It is not a de Polignac number, because 39886975 - 2⁹ = 39886463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5077 + ... + 10273.

Almost surely, 2^39886975 is an apocalyptic number.

39886975 is a deficient number, since it is larger than the sum of its proper divisors (9743529).

39886975 is a wasteful number, since it uses less digits than its factorization.

39886975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514 (or 5509 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 39886975 is about 6315.6135885597. The cubic root of 39886975 is about 341.6727687455.

The spelling of 39886975 in words is "thirty-nine million, eight hundred eighty-six thousand, nine hundred seventy-five".