402938959 has 2 divisors, whose sum is σ = 402938960. Its totient is φ = 402938958.

The previous prime is 402938957. The next prime is 402938969. The reversal of 402938959 is 959839204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402938959 - 2¹ = 402938957 is a prime.

Together with 402938957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402938957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201469479 + 201469480.

It is an arithmetic number, because the mean of its divisors is an integer number (201469480).

Almost surely, 2^402938959 is an apocalyptic number.

402938959 is a deficient number, since it is larger than the sum of its proper divisors (1).

402938959 is an equidigital number, since it uses as much as digits as its factorization.

402938959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 402938959 is about 20073.3395079145. The cubic root of 402938959 is about 738.6064343868.

The spelling of 402938959 in words is "four hundred two million, nine hundred thirty-eight thousand, nine hundred fifty-nine".