402597 has 32 divisors (see below), whose sum is σ = 680960. Its totient is φ = 233280.

The previous prime is 402593. The next prime is 402601. The reversal of 402597 is 795204.

It is an interprime number because it is at equal distance from previous prime (402593) and next prime (402601).

It is not a de Polignac number, because 402597 - 2² = 402593 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 402597 = 42³ + 69³ = 56³ + 61³.

It is a self number, because there is not a number n which added to its sum of digits gives 402597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10863 + ... + 10899.

It is an arithmetic number, because the mean of its divisors is an integer number (21280).

2⁴⁰²⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

402597 is a deficient number, since it is larger than the sum of its proper divisors (278363).

402597 is a wasteful number, since it uses less digits than its factorization.

402597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 402597 is about 634.5053191266. The cubic root of 402597 is about 73.8397432837.

It can be divided in two parts, 402 and 597, that added together give a palindrome (999).

The spelling of 402597 in words is "four hundred two thousand, five hundred ninety-seven".