398925795 has 8 divisors (see below), whose sum is σ = 638281296. Its totient is φ = 212760416.

The previous prime is 398925743. The next prime is 398925803. The reversal of 398925795 is 597529893.

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

It is a cyclic number.

It is not a de Polignac number, because 398925795 - 2²¹ = 396828643 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13297512 + ... + 13297541.

It is an arithmetic number, because the mean of its divisors is an integer number (79785162).

Almost surely, 2^398925795 is an apocalyptic number.

398925795 is a deficient number, since it is larger than the sum of its proper divisors (239355501).

398925795 is a wasteful number, since it uses less digits than its factorization.

398925795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26595061.

The product of its digits is 6123600, while the sum is 57.

The square root of 398925795 is about 19973.1268208060. The cubic root of 398925795 is about 736.1461409107.

The spelling of 398925795 in words is "three hundred ninety-eight million, nine hundred twenty-five thousand, seven hundred ninety-five".