628492699 has 4 divisors (see below), whose sum is σ = 638795920. Its totient is φ = 618189480.

The previous prime is 628492663. The next prime is 628492723. The reversal of 628492699 is 996294826.

628492699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 628492699 - 2²⁹ = 91621787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628492609) 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, 5151519 + ... + 5151640.

It is an arithmetic number, because the mean of its divisors is an integer number (159698980).

Almost surely, 2^628492699 is an apocalyptic number.

628492699 is a deficient number, since it is larger than the sum of its proper divisors (10303221).

628492699 is a wasteful number, since it uses less digits than its factorization.

628492699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303220.

The product of its digits is 3359232, while the sum is 55.

The square root of 628492699 is about 25069.7566601672. The cubic root of 628492699 is about 856.5776641138.

The spelling of 628492699 in words is "six hundred twenty-eight million, four hundred ninety-two thousand, six hundred ninety-nine".