38004689 has 4 divisors (see below), whose sum is σ = 38098020. Its totient is φ = 37911360.

The previous prime is 38004679. The next prime is 38004719. The reversal of 38004689 is 98640083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14190289 + 23814400 = 3767^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 38004689 - 2⁸ = 38004433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38004679) 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, 46052 + ... + 46869.

It is an arithmetic number, because the mean of its divisors is an integer number (9524505).

Almost surely, 2^38004689 is an apocalyptic number.

It is an amenable number.

38004689 is a deficient number, since it is larger than the sum of its proper divisors (93331).

38004689 is an equidigital number, since it uses as much as digits as its factorization.

38004689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93330.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 38004689 is about 6164.7943193589. The cubic root of 38004689 is about 336.2113684468.

The spelling of 38004689 in words is "thirty-eight million, four thousand, six hundred eighty-nine".