398694 has 8 divisors (see below), whose sum is σ = 797400. Its totient is φ = 132896.

The previous prime is 398693. The next prime is 398711. The reversal of 398694 is 496893.

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

398694 is an admirable number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398693) 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, 33219 + ... + 33230.

It is an arithmetic number, because the mean of its divisors is an integer number (99675).

2³⁹⁸⁶⁹⁴ is an apocalyptic number.

398694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

398694 is a wasteful number, since it uses less digits than its factorization.

398694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66454.

The product of its digits is 46656, while the sum is 39.

The square root of 398694 is about 631.4222042342. The cubic root of 398694 is about 73.6003534561.

The spelling of 398694 in words is "three hundred ninety-eight thousand, six hundred ninety-four".