38658969 has 24 divisors (see below), whose sum is σ = 60732360. Its totient is φ = 23597568.

The previous prime is 38658959. The next prime is 38658979. The reversal of 38658969 is 96985683.

It is an interprime number because it is at equal distance from previous prime (38658959) and next prime (38658979).

It can be written as a sum of positive squares in 4 ways, for example, as 19474569 + 19184400 = 4413^2 + 4380^2 .

It is not a de Polignac number, because 38658969 - 2¹⁷ = 38527897 is a prime.

It is a super-2 number, since 2×38658969² = 2989031768285922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38658959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2247 + ... + 9075.

It is an arithmetic number, because the mean of its divisors is an integer number (2530515).

Almost surely, 2^38658969 is an apocalyptic number.

It is an amenable number.

38658969 is a deficient number, since it is larger than the sum of its proper divisors (22073391).

38658969 is a wasteful number, since it uses less digits than its factorization.

38658969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889 (or 6886 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 38658969 is about 6217.6337138818. The cubic root of 38658969 is about 338.1297804671.

The spelling of 38658969 in words is "thirty-eight million, six hundred fifty-eight thousand, nine hundred sixty-nine".