398059893 has 32 divisors (see below), whose sum is σ = 735237120. Its totient is φ = 206783280.

The previous prime is 398059891. The next prime is 398059903. The reversal of 398059893 is 398950893.

It is not a de Polignac number, because 398059893 - 2¹ = 398059891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398059891) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 93655 + ... + 97812.

It is an arithmetic number, because the mean of its divisors is an integer number (22976160).

Almost surely, 2^398059893 is an apocalyptic number.

398059893 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

398059893 is a deficient number, since it is larger than the sum of its proper divisors (337177227).

398059893 is a wasteful number, since it uses less digits than its factorization.

398059893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191494 (or 191488 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 398059893 is about 19951.4383692004. The cubic root of 398059893 is about 735.6131327009.

The spelling of 398059893 in words is "three hundred ninety-eight million, fifty-nine thousand, eight hundred ninety-three".