402113287 has 2 divisors, whose sum is σ = 402113288. Its totient is φ = 402113286.

The previous prime is 402113177. The next prime is 402113293. The reversal of 402113287 is 782311204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402113287 - 2¹¹ = 402111239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402113687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201056643 + 201056644.

It is an arithmetic number, because the mean of its divisors is an integer number (201056644).

Almost surely, 2^402113287 is an apocalyptic number.

402113287 is a deficient number, since it is larger than the sum of its proper divisors (1).

402113287 is an equidigital number, since it uses as much as digits as its factorization.

402113287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 402113287 is about 20052.7625777597. The cubic root of 402113287 is about 738.1015906103.

The spelling of 402113287 in words is "four hundred two million, one hundred thirteen thousand, two hundred eighty-seven".