628373823 has 64 divisors (see below), whose sum is σ = 1101717504. Its totient is φ = 308880000.

The previous prime is 628373819. The next prime is 628373897. The reversal of 628373823 is 328373826.

It is not a de Polignac number, because 628373823 - 2² = 628373819 is a prime.

It is a super-2 number, since 2×628373823² = 789707322863270658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628373803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 536028 + ... + 537198.

It is an arithmetic number, because the mean of its divisors is an integer number (17214336).

Almost surely, 2^628373823 is an apocalyptic number.

628373823 is a deficient number, since it is larger than the sum of its proper divisors (473343681).

628373823 is a wasteful number, since it uses less digits than its factorization.

628373823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316.

The product of its digits is 290304, while the sum is 42.

The square root of 628373823 is about 25067.3856435010. The cubic root of 628373823 is about 856.5236550287.

The spelling of 628373823 in words is "six hundred twenty-eight million, three hundred seventy-three thousand, eight hundred twenty-three".