38693887 has 8 divisors (see below), whose sum is σ = 41072832. Its totient is φ = 36326400.

The previous prime is 38693881. The next prime is 38693903. The reversal of 38693887 is 78839683.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38693887 - 2²³ = 30305279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38693881) 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, 4687 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (5134104).

Almost surely, 2^38693887 is an apocalyptic number.

38693887 is a deficient number, since it is larger than the sum of its proper divisors (2378945).

38693887 is a wasteful number, since it uses less digits than its factorization.

38693887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5729.

The product of its digits is 1741824, while the sum is 52.

The square root of 38693887 is about 6220.4410615325. The cubic root of 38693887 is about 338.2315529923.

The spelling of 38693887 in words is "thirty-eight million, six hundred ninety-three thousand, eight hundred eighty-seven".