402887627 has 2 divisors, whose sum is σ = 402887628. Its totient is φ = 402887626.

The previous prime is 402887593. The next prime is 402887629. The reversal of 402887627 is 726788204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402887627 is a prime.

It is a super-2 number, since 2×402887627² = 324636879979382258, which contains 22 as substring.

Together with 402887629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402887629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201443813 + 201443814.

It is an arithmetic number, because the mean of its divisors is an integer number (201443814).

Almost surely, 2^402887627 is an apocalyptic number.

402887627 is a deficient number, since it is larger than the sum of its proper divisors (1).

402887627 is an equidigital number, since it uses as much as digits as its factorization.

402887627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 402887627 is about 20072.0608558264. The cubic root of 402887627 is about 738.5750683823.

The spelling of 402887627 in words is "four hundred two million, eight hundred eighty-seven thousand, six hundred twenty-seven".