38878825 has 6 divisors (see below), whose sum is σ = 48209774. Its totient is φ = 31103040.

The previous prime is 38878811. The next prime is 38878831. The reversal of 38878825 is 52887883.

38878825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13638249 + 25240576 = 3693^2 + 5024^2 .

It is not a de Polignac number, because 38878825 - 2⁵ = 38878793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 777552 + ... + 777601.

Almost surely, 2^38878825 is an apocalyptic number.

It is an amenable number.

38878825 is a deficient number, since it is larger than the sum of its proper divisors (9330949).

38878825 is a wasteful number, since it uses less digits than its factorization.

38878825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555163 (or 1555158 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 38878825 is about 6235.2886861797. The cubic root of 38878825 is about 338.7695576550.

The spelling of 38878825 in words is "thirty-eight million, eight hundred seventy-eight thousand, eight hundred twenty-five".