628199086 has 8 divisors (see below), whose sum is σ = 962347680. Its totient is φ = 307416528.

The previous prime is 628199081. The next prime is 628199087. The reversal of 628199086 is 680991826.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628199081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341391 + ... + 3341578.

It is an arithmetic number, because the mean of its divisors is an integer number (120293460).

Almost surely, 2^628199086 is an apocalyptic number.

628199086 is a deficient number, since it is larger than the sum of its proper divisors (334148594).

628199086 is a wasteful number, since it uses less digits than its factorization.

628199086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683018.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 628199086 is about 25063.9000556577. The cubic root of 628199086 is about 856.4442541776. Note that the first 3 decimals are identical.

The spelling of 628199086 in words is "six hundred twenty-eight million, one hundred ninety-nine thousand, eighty-six".