628645496 has 8 divisors (see below), whose sum is σ = 1178710320. Its totient is φ = 314322744.

The previous prime is 628645489. The next prime is 628645517. The reversal of 628645496 is 694546826.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39290336 + ... + 39290351.

It is an arithmetic number, because the mean of its divisors is an integer number (147338790).

Almost surely, 2^628645496 is an apocalyptic number.

It is an amenable number.

628645496 is a deficient number, since it is larger than the sum of its proper divisors (550064824).

628645496 is a wasteful number, since it uses less digits than its factorization.

628645496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78580693 (or 78580689 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The square root of 628645496 is about 25072.8039118085. The cubic root of 628645496 is about 856.6470745686.

The spelling of 628645496 in words is "six hundred twenty-eight million, six hundred forty-five thousand, four hundred ninety-six".