398525 has 12 divisors (see below), whose sum is σ = 520800. Its totient is φ = 301680.

The previous prime is 398509. The next prime is 398539. The reversal of 398525 is 525893.

It is a happy number.

It is not a de Polignac number, because 398525 - 2⁴ = 398509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 398491 and 398500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (43400).

2³⁹⁸⁵²⁵ is an apocalyptic number.

It is an amenable number.

398525 is a deficient number, since it is larger than the sum of its proper divisors (122275).

398525 is a wasteful number, since it uses less digits than its factorization.

398525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 863 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 398525 is about 631.2883651708. The cubic root of 398525 is about 73.5899526494.

The spelling of 398525 in words is "three hundred ninety-eight thousand, five hundred twenty-five".