38731089 has 16 divisors (see below), whose sum is σ = 53330112. Its totient is φ = 24987648.

The previous prime is 38731087. The next prime is 38731123. The reversal of 38731089 is 98013783.

It is not a de Polignac number, because 38731089 - 2¹ = 38731087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38731087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13249 + ... + 15905.

It is an arithmetic number, because the mean of its divisors is an integer number (3333132).

Almost surely, 2^38731089 is an apocalyptic number.

It is an amenable number.

38731089 is a deficient number, since it is larger than the sum of its proper divisors (14599023).

38731089 is a wasteful number, since it uses less digits than its factorization.

38731089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 38731089 is about 6223.4306455523. The cubic root of 38731089 is about 338.3399151548.

The spelling of 38731089 in words is "thirty-eight million, seven hundred thirty-one thousand, eighty-nine".