398846 has 16 divisors (see below), whose sum is σ = 706560. Its totient is φ = 165240.

The previous prime is 398833. The next prime is 398857. The reversal of 398846 is 648893.

398846 = 23² + 24² + ... + 106².

It is a congruent number.

It is an unprimeable number.

398846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (44160).

2³⁹⁸⁸⁴⁶ is an apocalyptic number.

398846 is a deficient number, since it is larger than the sum of its proper divisors (307714).

398846 is a wasteful number, since it uses less digits than its factorization.

398846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its digits is 41472, while the sum is 38.

The square root of 398846 is about 631.5425559691. The cubic root of 398846 is about 73.6097055175.

Subtracting 398846 from its reverse (648893), we obtain a cube (250047 = 63³).

The spelling of 398846 in words is "three hundred ninety-eight thousand, eight hundred forty-six".