38694621 has 16 divisors (see below), whose sum is σ = 62067200. Its totient is φ = 20947248.

The previous prime is 38694589. The next prime is 38694629. The reversal of 38694621 is 12649683.

It is not a de Polignac number, because 38694621 - 2⁵ = 38694589 is a prime.

It is the 6221-st Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38694621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38694629) by changing a digit.

It is a nontrivial repunit in base 6220.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48091 + ... + 48888.

It is an arithmetic number, because the mean of its divisors is an integer number (3879200).

Almost surely, 2^38694621 is an apocalyptic number.

It is an amenable number.

38694621 is a deficient number, since it is larger than the sum of its proper divisors (23372579).

38694621 is a wasteful number, since it uses less digits than its factorization.

38694621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97008.

The product of its digits is 62208, while the sum is 39.

The square root of 38694621 is about 6220.5000602845. The cubic root of 38694621 is about 338.2336916625.

The spelling of 38694621 in words is "thirty-eight million, six hundred ninety-four thousand, six hundred twenty-one".