39884913 has 8 divisors (see below), whose sum is σ = 59088800. Its totient is φ = 26589924.

The previous prime is 39884909. The next prime is 39884917. The reversal of 39884913 is 31948893.

It is an interprime number because it is at equal distance from previous prime (39884909) and next prime (39884917).

It is not a de Polignac number, because 39884913 - 2² = 39884909 is a prime.

It is a super-3 number, since 3×39884913³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39884917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738583 + ... + 738636.

It is an arithmetic number, because the mean of its divisors is an integer number (7386100).

Almost surely, 2^39884913 is an apocalyptic number.

It is an amenable number.

39884913 is a deficient number, since it is larger than the sum of its proper divisors (19203887).

39884913 is a wasteful number, since it uses less digits than its factorization.

39884913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477228 (or 1477222 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 39884913 is about 6315.4503402370. The cubic root of 39884913 is about 341.6668809305. Note that the first 3 decimals are identical.

The spelling of 39884913 in words is "thirty-nine million, eight hundred eighty-four thousand, nine hundred thirteen".