38164989 has 4 divisors (see below), whose sum is σ = 50886656. Its totient is φ = 25443324.

The previous prime is 38164967. The next prime is 38164993. The reversal of 38164989 is 98946183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38164989 - 2¹⁷ = 38033917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38164909) 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, 6360829 + ... + 6360834.

It is an arithmetic number, because the mean of its divisors is an integer number (12721664).

Almost surely, 2^38164989 is an apocalyptic number.

It is an amenable number.

38164989 is a deficient number, since it is larger than the sum of its proper divisors (12721667).

38164989 is a wasteful number, since it uses less digits than its factorization.

38164989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721666.

The product of its digits is 373248, while the sum is 48.

The square root of 38164989 is about 6177.7818834918. The cubic root of 38164989 is about 336.6834074391.

The spelling of 38164989 in words is "thirty-eight million, one hundred sixty-four thousand, nine hundred eighty-nine".