38684775 has 24 divisors (see below), whose sum is σ = 67723344. Its totient is φ = 19417600.

The previous prime is 38684749. The next prime is 38684783. The reversal of 38684775 is 57748683.

It is not a de Polignac number, because 38684775 - 2⁵ = 38684743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13896 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (2821806).

Almost surely, 2^38684775 is an apocalyptic number.

38684775 is a deficient number, since it is larger than the sum of its proper divisors (29038569).

38684775 is a wasteful number, since it uses less digits than its factorization.

38684775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30371 (or 30366 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 38684775 is about 6219.7085944600. The cubic root of 38684775 is about 338.2050009268.

The spelling of 38684775 in words is "thirty-eight million, six hundred eighty-four thousand, seven hundred seventy-five".