628866696 has 64 divisors (see below), whose sum is σ = 1592680320. Its totient is φ = 206904320.

The previous prime is 628866691. The next prime is 628866709. The reversal of 628866696 is 696668826.

It is a super-4 number, since 4×628866696⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (628866691) 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 15 ways as a sum of consecutive naturals, for example, 1249981 + ... + 1250483.

It is an arithmetic number, because the mean of its divisors is an integer number (24885630).

Almost surely, 2^628866696 is an apocalyptic number.

It is an amenable number.

628866696 is an abundant number, since it is smaller than the sum of its proper divisors (963813624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628866696 is a wasteful number, since it uses less digits than its factorization.

628866696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1082 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The square root of 628866696 is about 25077.2146778704. The cubic root of 628866696 is about 856.7475382445.

The spelling of 628866696 in words is "six hundred twenty-eight million, eight hundred sixty-six thousand, six hundred ninety-six".