38787764 has 12 divisors (see below), whose sum is σ = 67933824. Its totient is φ = 19378104.

The previous prime is 38787733. The next prime is 38787767. The reversal of 38787764 is 46778783.

It is a super-2 number, since 2×38787764² = 3008981272239392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38787767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (5661152).

Almost surely, 2^38787764 is an apocalyptic number.

It is an amenable number.

38787764 is a deficient number, since it is larger than the sum of its proper divisors (29146060).

38787764 is a wasteful number, since it uses less digits than its factorization.

38787764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894 (or 7892 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 38787764 is about 6227.9823378041. The cubic root of 38787764 is about 338.5048650670.

The spelling of 38787764 in words is "thirty-eight million, seven hundred eighty-seven thousand, seven hundred sixty-four".