628976622 has 8 divisors (see below), whose sum is σ = 1257953256. Its totient is φ = 209658872.

The previous prime is 628976603. The next prime is 628976641. The reversal of 628976622 is 226679826.

It is an interprime number because it is at equal distance from previous prime (628976603) and next prime (628976641).

It is a sphenic number, since it is the product of 3 distinct primes.

628976622 is an admirable number.

It is a super-2 number, since 2×628976622² = 791223182045061768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52414713 + ... + 52414724.

It is an arithmetic number, because the mean of its divisors is an integer number (157244157).

Almost surely, 2^628976622 is an apocalyptic number.

628976622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

628976622 is a wasteful number, since it uses less digits than its factorization.

628976622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104829442.

The product of its digits is 870912, while the sum is 48.

The square root of 628976622 is about 25079.4063326866. The cubic root of 628976622 is about 856.7974552055.

The spelling of 628976622 in words is "six hundred twenty-eight million, nine hundred seventy-six thousand, six hundred twenty-two".