628474323 has 4 divisors (see below), whose sum is σ = 837965768. Its totient is φ = 418982880.

The previous prime is 628474307. The next prime is 628474331. The reversal of 628474323 is 323474826.

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

It is not a de Polignac number, because 628474323 - 2⁴ = 628474307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628474393) 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, 104745718 + ... + 104745723.

It is an arithmetic number, because the mean of its divisors is an integer number (209491442).

Almost surely, 2^628474323 is an apocalyptic number.

628474323 is a deficient number, since it is larger than the sum of its proper divisors (209491445).

628474323 is a wasteful number, since it uses less digits than its factorization.

628474323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209491444.

The product of its digits is 193536, while the sum is 39.

The square root of 628474323 is about 25069.3901601136. The cubic root of 628474323 is about 856.5693157673.

The spelling of 628474323 in words is "six hundred twenty-eight million, four hundred seventy-four thousand, three hundred twenty-three".