398417603 has 4 divisors (see below), whose sum is σ = 402141240. Its totient is φ = 394693968.

The previous prime is 398417599. The next prime is 398417609. The reversal of 398417603 is 306714893.

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 398417603 - 2² = 398417599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398417609) 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, 1861658 + ... + 1861871.

It is an arithmetic number, because the mean of its divisors is an integer number (100535310).

Almost surely, 2^398417603 is an apocalyptic number.

398417603 is a deficient number, since it is larger than the sum of its proper divisors (3723637).

398417603 is a wasteful number, since it uses less digits than its factorization.

398417603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723636.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 398417603 is about 19960.4008727280. The cubic root of 398417603 is about 735.8334156254.

The spelling of 398417603 in words is "three hundred ninety-eight million, four hundred seventeen thousand, six hundred three".