628476479 has 2 divisors, whose sum is σ = 628476480. Its totient is φ = 628476478.

The previous prime is 628476461. The next prime is 628476481. The reversal of 628476479 is 974674826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628476479 - 2⁸ = 628476223 is a prime.

Together with 628476481, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628476479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628476419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314238239 + 314238240.

It is an arithmetic number, because the mean of its divisors is an integer number (314238240).

Almost surely, 2^628476479 is an apocalyptic number.

628476479 is a deficient number, since it is larger than the sum of its proper divisors (1).

628476479 is an equidigital number, since it uses as much as digits as its factorization.

628476479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The square root of 628476479 is about 25069.4331607238. The cubic root of 628476479 is about 856.5702952617.

The spelling of 628476479 in words is "six hundred twenty-eight million, four hundred seventy-six thousand, four hundred seventy-nine".