398901004 has 12 divisors (see below), whose sum is σ = 707909328. Its totient is φ = 196641200.

The previous prime is 398901001. The next prime is 398901007. The reversal of 398901004 is 400109893.

It is an interprime number because it is at equal distance from previous prime (398901001) and next prime (398901007).

It is not an unprimeable number, because it can be changed into a prime (398901001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702007 + ... + 702574.

It is an arithmetic number, because the mean of its divisors is an integer number (58992444).

Almost surely, 2^398901004 is an apocalyptic number.

It is an amenable number.

398901004 is a deficient number, since it is larger than the sum of its proper divisors (309008324).

398901004 is a wasteful number, since it uses less digits than its factorization.

398901004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404656 (or 1404654 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 398901004 is about 19972.5062022772. The cubic root of 398901004 is about 736.1308914773.

The spelling of 398901004 in words is "three hundred ninety-eight million, nine hundred one thousand, four".