39887394 has 8 divisors (see below), whose sum is σ = 79774800. Its totient is φ = 13295796.

The previous prime is 39887387. The next prime is 39887401. The reversal of 39887394 is 49378893.

It is an interprime number because it is at equal distance from previous prime (39887387) and next prime (39887401).

It is a sphenic number, since it is the product of 3 distinct primes.

39887394 is an admirable number.

It is a super-2 number, since 2×39887394² = 3182008400222472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3323944 + ... + 3323955.

It is an arithmetic number, because the mean of its divisors is an integer number (9971850).

Almost surely, 2^39887394 is an apocalyptic number.

39887394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39887394 is a wasteful number, since it uses less digits than its factorization.

39887394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647904.

The product of its digits is 1306368, while the sum is 51.

The square root of 39887394 is about 6315.6467602297. The cubic root of 39887394 is about 341.6739651293.

The spelling of 39887394 in words is "thirty-nine million, eight hundred eighty-seven thousand, three hundred ninety-four".