398692801 has 6 divisors (see below), whose sum is σ = 431720790. Its totient is φ = 368023968.

The previous prime is 398692769. The next prime is 398692817. The reversal of 398692801 is 108296893.

It can be written as a sum of positive squares in 3 ways, for example, as 2483776 + 396209025 = 1576^2 + 19905^2 .

It is not a de Polignac number, because 398692801 - 2⁵ = 398692769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398692831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1179396 + ... + 1179733.

It is an arithmetic number, because the mean of its divisors is an integer number (71953465).

Almost surely, 2^398692801 is an apocalyptic number.

It is an amenable number.

398692801 is a deficient number, since it is larger than the sum of its proper divisors (33027989).

398692801 is a wasteful number, since it uses less digits than its factorization.

398692801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359155 (or 2359142 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 398692801 is about 19967.2932817646. The cubic root of 398692801 is about 736.0027967610.

The spelling of 398692801 in words is "three hundred ninety-eight million, six hundred ninety-two thousand, eight hundred one".