38938565 has 8 divisors (see below), whose sum is σ = 47366808. Its totient is φ = 30723840.

The previous prime is 38938553. The next prime is 38938567. The reversal of 38938565 is 56583983.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25921 + 38912644 = 161^2 + 6238^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-38938565 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 (38938567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52976 + ... + 53705.

It is an arithmetic number, because the mean of its divisors is an integer number (5920851).

Almost surely, 2^38938565 is an apocalyptic number.

It is an amenable number.

38938565 is a deficient number, since it is larger than the sum of its proper divisors (8428243).

38938565 is a wasteful number, since it uses less digits than its factorization.

38938565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106759.

The product of its digits is 777600, while the sum is 47.

The square root of 38938565 is about 6240.0773232389. The cubic root of 38938565 is about 338.9429831333.

The spelling of 38938565 in words is "thirty-eight million, nine hundred thirty-eight thousand, five hundred sixty-five".