399802 has 8 divisors (see below), whose sum is σ = 645876. Its totient is φ = 184512.

The previous prime is 399793. The next prime is 399851. The reversal of 399802 is 208993.

It is a happy number.

399802 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 385641 + 14161 = 621^2 + 119^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7663 + ... + 7714.

2³⁹⁹⁸⁰² is an apocalyptic number.

399802 is a deficient number, since it is larger than the sum of its proper divisors (246074).

399802 is a wasteful number, since it uses less digits than its factorization.

399802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 399802 is about 632.2989799138. The cubic root of 399802 is about 73.6684706624.

The spelling of 399802 in words is "three hundred ninety-nine thousand, eight hundred two".