628413287 has 2 divisors, whose sum is σ = 628413288. Its totient is φ = 628413286.

The previous prime is 628413263. The next prime is 628413323. The reversal of 628413287 is 782314826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628413287 - 2²² = 624218983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628413257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314206643 + 314206644.

It is an arithmetic number, because the mean of its divisors is an integer number (314206644).

Almost surely, 2^628413287 is an apocalyptic number.

628413287 is a deficient number, since it is larger than the sum of its proper divisors (1).

628413287 is an equidigital number, since it uses as much as digits as its factorization.

628413287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The square root of 628413287 is about 25068.1727894157. The cubic root of 628413287 is about 856.5415855135.

The spelling of 628413287 in words is "six hundred twenty-eight million, four hundred thirteen thousand, two hundred eighty-seven".