402462887 has 2 divisors, whose sum is σ = 402462888. Its totient is φ = 402462886.

The previous prime is 402462869. The next prime is 402462889. The reversal of 402462887 is 788264204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402462887 - 2²² = 398268583 is a prime.

Together with 402462889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402462889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201231443 + 201231444.

It is an arithmetic number, because the mean of its divisors is an integer number (201231444).

Almost surely, 2^402462887 is an apocalyptic number.

402462887 is a deficient number, since it is larger than the sum of its proper divisors (1).

402462887 is an equidigital number, since it uses as much as digits as its factorization.

402462887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 402462887 is about 20061.4776873490. The cubic root of 402462887 is about 738.3154321485.

The spelling of 402462887 in words is "four hundred two million, four hundred sixty-two thousand, eight hundred eighty-seven".