398700 has 54 divisors (see below), whose sum is σ = 1252524. Its totient is φ = 106080.

The previous prime is 398693. The next prime is 398711. The reversal of 398700 is 7893.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 679 + ... + 1121.

2³⁹⁸⁷⁰⁰ is an apocalyptic number.

398700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626262).

398700 is an abundant number, since it is smaller than the sum of its proper divisors (853824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398700 is a wasteful number, since it uses less digits than its factorization.

398700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 398700 is about 631.4269553955. The cubic root of 398700 is about 73.6007226615.

The spelling of 398700 in words is "three hundred ninety-eight thousand, seven hundred".