402899 has 4 divisors (see below), whose sum is σ = 460464. Its totient is φ = 345336.

The previous prime is 402881. The next prime is 402923. The reversal of 402899 is 998204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402899 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402899.

It is not an unprimeable number, because it can be changed into a prime (402859) 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, 28772 + ... + 28785.

It is an arithmetic number, because the mean of its divisors is an integer number (115116).

2⁴⁰²⁸⁹⁹ is an apocalyptic number.

402899 is a deficient number, since it is larger than the sum of its proper divisors (57565).

402899 is an equidigital number, since it uses as much as digits as its factorization.

402899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57564.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 402899 is about 634.7432551828. The cubic root of 402899 is about 73.8582017992.

The spelling of 402899 in words is "four hundred two thousand, eight hundred ninety-nine".