402684683 has 4 divisors (see below), whose sum is σ = 407209320. Its totient is φ = 398160048.

The previous prime is 402684679. The next prime is 402684697. The reversal of 402684683 is 386486204.

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 402684683 - 2² = 402684679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402684683.

It is not an unprimeable number, because it can be changed into a prime (402684383) 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, 2262185 + ... + 2262362.

It is an arithmetic number, because the mean of its divisors is an integer number (101802330).

Almost surely, 2^402684683 is an apocalyptic number.

402684683 is a deficient number, since it is larger than the sum of its proper divisors (4524637).

402684683 is an equidigital number, since it uses as much as digits as its factorization.

402684683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524636.

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 402684683 is about 20067.0048338062. The cubic root of 402684683 is about 738.4510349932.

The spelling of 402684683 in words is "four hundred two million, six hundred eighty-four thousand, six hundred eighty-three".