38798865 has 32 divisors (see below), whose sum is σ = 78831360. Its totient is φ = 17736192.

The previous prime is 38798849. The next prime is 38798869. The reversal of 38798865 is 56889783.

It is a happy number.

It is not a de Polignac number, because 38798865 - 2⁴ = 38798849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38798869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19584 + ... + 21473.

It is an arithmetic number, because the mean of its divisors is an integer number (2463480).

Almost surely, 2^38798865 is an apocalyptic number.

38798865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38798865 is an abundant number, since it is smaller than the sum of its proper divisors (40032495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38798865 is a wasteful number, since it uses less digits than its factorization.

38798865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41078 (or 41072 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 38798865 is about 6228.8734936584. The cubic root of 38798865 is about 338.5371551820.

The spelling of 38798865 in words is "thirty-eight million, seven hundred ninety-eight thousand, eight hundred sixty-five".