628695122 has 16 divisors (see below), whose sum is σ = 1089290592. Its totient is φ = 268960320.

The previous prime is 628695101. The next prime is 628695127. The reversal of 628695122 is 221596826.

It is a self number, because there is not a number n which added to its sum of digits gives 628695122.

It is not an unprimeable number, because it can be changed into a prime (628695127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840128 + ... + 840875.

It is an arithmetic number, because the mean of its divisors is an integer number (68080662).

Almost surely, 2^628695122 is an apocalyptic number.

628695122 is a deficient number, since it is larger than the sum of its proper divisors (460595470).

628695122 is a wasteful number, since it uses less digits than its factorization.

628695122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681033.

The product of its digits is 103680, while the sum is 41.

The square root of 628695122 is about 25073.7935302977. The cubic root of 628695122 is about 856.6696155446.

The spelling of 628695122 in words is "six hundred twenty-eight million, six hundred ninety-five thousand, one hundred twenty-two".