38900691 has 12 divisors (see below), whose sum is σ = 58002880. Its totient is φ = 25097040.

The previous prime is 38900671. The next prime is 38900699. The reversal of 38900691 is 19600983.

38900691 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 38900691 - 2⁹ = 38900179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38900699) 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 11 ways as a sum of consecutive naturals, for example, 69436 + ... + 69993.

Almost surely, 2^38900691 is an apocalyptic number.

38900691 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

38900691 is a deficient number, since it is larger than the sum of its proper divisors (19102189).

38900691 is a wasteful number, since it uses less digits than its factorization.

38900691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139466 (or 139463 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 38900691 is about 6237.0418469015. The cubic root of 38900691 is about 338.8330553462.

The spelling of 38900691 in words is "thirty-eight million, nine hundred thousand, six hundred ninety-one".