399702 has 8 divisors (see below), whose sum is σ = 799416. Its totient is φ = 133232.

The previous prime is 399691. The next prime is 399719. The reversal of 399702 is 207993.

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

399702 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 399702.

It is a congruent number.

It is an unprimeable number.

399702 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 3 ways as a sum of consecutive naturals, for example, 33303 + ... + 33314.

It is an arithmetic number, because the mean of its divisors is an integer number (99927).

2³⁹⁹⁷⁰² is an apocalyptic number.

399702 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.

399702 is a wasteful number, since it uses less digits than its factorization.

399702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66622.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 399702 is about 632.2198984531. The cubic root of 399702 is about 73.6623280706.

The spelling of 399702 in words is "three hundred ninety-nine thousand, seven hundred two".