402897 has 16 divisors (see below), whose sum is σ = 607680. Its totient is φ = 235200.

The previous prime is 402881. The next prime is 402923. The reversal of 402897 is 798204.

It is not a de Polignac number, because 402897 - 2⁴ = 402881 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402897.

It is not an unprimeable number, because it can be changed into a prime (402817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (37980).

2⁴⁰²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

402897 is a deficient number, since it is larger than the sum of its proper divisors (204783).

402897 is a wasteful number, since it uses less digits than its factorization.

402897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 402897 is about 634.7416797407. The cubic root of 402897 is about 73.8580795877.

The spelling of 402897 in words is "four hundred two thousand, eight hundred ninety-seven".