398926 has 8 divisors (see below), whose sum is σ = 652824. Its totient is φ = 181320.

The previous prime is 398921. The next prime is 398933. The reversal of 398926 is 629893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398921) 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, 9045 + ... + 9088.

It is an arithmetic number, because the mean of its divisors is an integer number (81603).

2³⁹⁸⁹²⁶ is an apocalyptic number.

398926 is a deficient number, since it is larger than the sum of its proper divisors (253898).

398926 is a wasteful number, since it uses less digits than its factorization.

398926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146.

The product of its digits is 23328, while the sum is 37.

The square root of 398926 is about 631.6058897762. The cubic root of 398926 is about 73.6146267008.

The spelling of 398926 in words is "three hundred ninety-eight thousand, nine hundred twenty-six".