398372603 has 4 divisors (see below), whose sum is σ = 398586720. Its totient is φ = 398158488.

The previous prime is 398372593. The next prime is 398372621. The reversal of 398372603 is 306273893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398372603 - 2⁴ = 398372587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398372503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104243 + ... + 107996.

It is an arithmetic number, because the mean of its divisors is an integer number (99646680).

Almost surely, 2^398372603 is an apocalyptic number.

398372603 is a deficient number, since it is larger than the sum of its proper divisors (214117).

398372603 is a wasteful number, since it uses less digits than its factorization.

398372603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214116.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 398372603 is about 19959.2736090270. The cubic root of 398372603 is about 735.8057112350.

The spelling of 398372603 in words is "three hundred ninety-eight million, three hundred seventy-two thousand, six hundred three".