402877 has 4 divisors (see below), whose sum is σ = 404320. Its totient is φ = 401436.

The previous prime is 402869. The next prime is 402881. The reversal of 402877 is 778204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402877 - 2³ = 402869 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153 + ... + 910.

It is an arithmetic number, because the mean of its divisors is an integer number (101080).

2⁴⁰²⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

402877 is a deficient number, since it is larger than the sum of its proper divisors (1443).

402877 is a wasteful number, since it uses less digits than its factorization.

402877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 402877 is about 634.7259251047. The cubic root of 402877 is about 73.8568574507.

The spelling of 402877 in words is "four hundred two thousand, eight hundred seventy-seven".