38825989 has 4 divisors (see below), whose sum is σ = 39293856. Its totient is φ = 38358124.

The previous prime is 38825971. The next prime is 38825993. The reversal of 38825989 is 98952883.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98952883 = 5521 ⋅17923.

It is a cyclic number.

It is not a de Polignac number, because 38825989 - 2⁵ = 38825957 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 (38825929) 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, 233809 + ... + 233974.

It is an arithmetic number, because the mean of its divisors is an integer number (9823464).

Almost surely, 2^38825989 is an apocalyptic number.

It is an amenable number.

38825989 is a deficient number, since it is larger than the sum of its proper divisors (467867).

38825989 is an equidigital number, since it uses as much as digits as its factorization.

38825989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467866.

The product of its digits is 1244160, while the sum is 52.

The square root of 38825989 is about 6231.0503929915. The cubic root of 38825989 is about 338.6160264138.

The spelling of 38825989 in words is "thirty-eight million, eight hundred twenty-five thousand, nine hundred eighty-nine".