383899625 has 8 divisors (see below), whose sum is σ = 479106888. Its totient is φ = 307119600.

The previous prime is 383899603. The next prime is 383899669. The reversal of 383899625 is 526998383.

It can be written as a sum of positive squares in 4 ways, for example, as 16679056 + 367220569 = 4084^2 + 19163^2 .

It is a de Polignac number, because none of the positive numbers 2^k-383899625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535474 + ... + 1535723.

It is an arithmetic number, because the mean of its divisors is an integer number (59888361).

Almost surely, 2^383899625 is an apocalyptic number.

It is an amenable number.

383899625 is a deficient number, since it is larger than the sum of its proper divisors (95207263).

383899625 is an equidigital number, since it uses as much as digits as its factorization.

383899625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071212 (or 3071202 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The square root of 383899625 is about 19593.3566547440. The cubic root of 383899625 is about 726.7849005447.

The spelling of 383899625 in words is "three hundred eighty-three million, eight hundred ninety-nine thousand, six hundred twenty-five".