402899213 has 2 divisors, whose sum is σ = 402899214. Its totient is φ = 402899212.

The previous prime is 402899183. The next prime is 402899239. The reversal of 402899213 is 312998204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253032649 + 149866564 = 15907^2 + 12242^2 .

It is a cyclic number.

It is not a de Polignac number, because 402899213 - 2¹⁸ = 402637069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402899243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201449606 + 201449607.

It is an arithmetic number, because the mean of its divisors is an integer number (201449607).

Almost surely, 2^402899213 is an apocalyptic number.

It is an amenable number.

402899213 is a deficient number, since it is larger than the sum of its proper divisors (1).

402899213 is an equidigital number, since it uses as much as digits as its factorization.

402899213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 402899213 is about 20072.3494638769. The cubic root of 402899213 is about 738.5821481469.

The spelling of 402899213 in words is "four hundred two million, eight hundred ninety-nine thousand, two hundred thirteen".