628750790 has 16 divisors (see below), whose sum is σ = 1150305840. Its totient is φ = 247377120.

The previous prime is 628750789. The next prime is 628750817. The reversal of 628750790 is 97057826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514760 + ... + 515979.

It is an arithmetic number, because the mean of its divisors is an integer number (71894115).

Almost surely, 2^628750790 is an apocalyptic number.

628750790 is a deficient number, since it is larger than the sum of its proper divisors (521555050).

628750790 is a wasteful number, since it uses less digits than its factorization.

628750790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030807.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 628750790 is about 25074.9035890470. The cubic root of 628750790 is about 856.6948994886.

The spelling of 628750790 in words is "six hundred twenty-eight million, seven hundred fifty thousand, seven hundred ninety".