628112757 has 16 divisors (see below), whose sum is σ = 843128000. Its totient is φ = 415929600.

The previous prime is 628112741. The next prime is 628112759. The reversal of 628112757 is 757211826.

It is not a de Polignac number, because 628112757 - 2⁴ = 628112741 is a prime.

It is a super-2 number, since 2×628112757² = 789051271012282098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628112759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359907 + ... + 361647.

It is an arithmetic number, because the mean of its divisors is an integer number (52695500).

Almost surely, 2^628112757 is an apocalyptic number.

It is an amenable number.

628112757 is a deficient number, since it is larger than the sum of its proper divisors (215015243).

628112757 is a wasteful number, since it uses less digits than its factorization.

628112757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484.

The product of its digits is 47040, while the sum is 39.

The square root of 628112757 is about 25062.1778183780. The cubic root of 628112757 is about 856.4050206688.

The spelling of 628112757 in words is "six hundred twenty-eight million, one hundred twelve thousand, seven hundred fifty-seven".