38756691 has 16 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 25711560.

The previous prime is 38756681. The next prime is 38756693. The reversal of 38756691 is 19665783.

It is a happy number.

38756691 is a `hidden beast` number, since 3 + 87 + 566 + 9 + 1 = 666.

38756691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38756691 - 2¹³ = 38748499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38756693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2296 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (3606120).

Almost surely, 2^38756691 is an apocalyptic number.

38756691 is a deficient number, since it is larger than the sum of its proper divisors (18941229).

38756691 is a wasteful number, since it uses less digits than its factorization.

38756691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023 (or 7017 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 38756691 is about 6225.4872098495. The cubic root of 38756691 is about 338.4144484802.

The spelling of 38756691 in words is "thirty-eight million, seven hundred fifty-six thousand, six hundred ninety-one".