38687316 has 12 divisors (see below), whose sum is σ = 90270432. Its totient is φ = 12895768.

The previous prime is 38687269. The next prime is 38687323. The reversal of 38687316 is 61378683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611960 + ... + 1611983.

It is an arithmetic number, because the mean of its divisors is an integer number (7522536).

Almost surely, 2^38687316 is an apocalyptic number.

It is an amenable number.

38687316 is an abundant number, since it is smaller than the sum of its proper divisors (51583116).

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

38687316 is a wasteful number, since it uses less digits than its factorization.

38687316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223950 (or 3223948 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 38687316 is about 6219.9128611259. The cubic root of 38687316 is about 338.2124057357.

The spelling of 38687316 in words is "thirty-eight million, six hundred eighty-seven thousand, three hundred sixteen".