628476477 has 4 divisors (see below), whose sum is σ = 837968640. Its totient is φ = 418984316.

The previous prime is 628476461. The next prime is 628476479. The reversal of 628476477 is 774674826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628476477 - 2⁴ = 628476461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628476479) 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 in 3 ways as a sum of consecutive naturals, for example, 104746077 + ... + 104746082.

It is an arithmetic number, because the mean of its divisors is an integer number (209492160).

Almost surely, 2^628476477 is an apocalyptic number.

It is an amenable number.

628476477 is a deficient number, since it is larger than the sum of its proper divisors (209492163).

628476477 is a wasteful number, since it uses less digits than its factorization.

628476477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209492162.

The product of its digits is 3161088, while the sum is 51.

The square root of 628476477 is about 25069.4331208346. The cubic root of 628476477 is about 856.5702943531.

The spelling of 628476477 in words is "six hundred twenty-eight million, four hundred seventy-six thousand, four hundred seventy-seven".