402361087 has 2 divisors, whose sum is σ = 402361088. Its totient is φ = 402361086.

The previous prime is 402361027. The next prime is 402361111. The reversal of 402361087 is 780163204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402361087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402361007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201180543 + 201180544.

It is an arithmetic number, because the mean of its divisors is an integer number (201180544).

Almost surely, 2^402361087 is an apocalyptic number.

402361087 is a deficient number, since it is larger than the sum of its proper divisors (1).

402361087 is an equidigital number, since it uses as much as digits as its factorization.

402361087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 402361087 is about 20058.9403259494. The cubic root of 402361087 is about 738.2531764297.

The spelling of 402361087 in words is "four hundred two million, three hundred sixty-one thousand, eighty-seven".