398633017 has 6 divisors (see below), whose sum is σ = 423461678. Its totient is φ = 375183744.

The previous prime is 398633009. The next prime is 398633023. The reversal of 398633017 is 710336893.

It can be written as a sum of positive squares in 3 ways, for example, as 273439296 + 125193721 = 16536^2 + 11189^2 .

It is not a de Polignac number, because 398633017 - 2³ = 398633009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398633717) 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, 689388 + ... + 689965.

Almost surely, 2^398633017 is an apocalyptic number.

It is an amenable number.

398633017 is a deficient number, since it is larger than the sum of its proper divisors (24828661).

398633017 is a wasteful number, since it uses less digits than its factorization.

398633017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379387 (or 1379370 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 398633017 is about 19965.7961774631. The cubic root of 398633017 is about 735.9660070400.

The spelling of 398633017 in words is "three hundred ninety-eight million, six hundred thirty-three thousand, seventeen".