402876851 has 4 divisors (see below), whose sum is σ = 433867392. Its totient is φ = 371886312.

The previous prime is 402876827. The next prime is 402876857. The reversal of 402876851 is 158678204.

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

It is a cyclic number.

It is not a de Polignac number, because 402876851 - 2²² = 398682547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402876799 and 402876808.

It is not an unprimeable number, because it can be changed into a prime (402876857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15495251 + ... + 15495276.

It is an arithmetic number, because the mean of its divisors is an integer number (108466848).

Almost surely, 2^402876851 is an apocalyptic number.

402876851 is a deficient number, since it is larger than the sum of its proper divisors (30990541).

402876851 is a wasteful number, since it uses less digits than its factorization.

402876851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30990540.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 402876851 is about 20071.7924212064. The cubic root of 402876851 is about 738.5684834560.

The spelling of 402876851 in words is "four hundred two million, eight hundred seventy-six thousand, eight hundred fifty-one".