402913 has 4 divisors (see below), whose sum is σ = 460480. Its totient is φ = 345348.

The previous prime is 402881. The next prime is 402923. The reversal of 402913 is 319204.

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 402913 - 2⁵ = 402881 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402923) 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, 28773 + ... + 28786.

It is an arithmetic number, because the mean of its divisors is an integer number (115120).

2⁴⁰²⁹¹³ is an apocalyptic number.

It is an amenable number.

402913 is a deficient number, since it is larger than the sum of its proper divisors (57567).

402913 is an equidigital number, since it uses as much as digits as its factorization.

402913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57566.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 402913 is about 634.7542831679. The cubic root of 402913 is about 73.8590572682.

The spelling of 402913 in words is "four hundred two thousand, nine hundred thirteen".