628495767 has 40 divisors (see below), whose sum is σ = 974272640. Its totient is φ = 403341120.

The previous prime is 628495759. The next prime is 628495781. The reversal of 628495767 is 767594826.

628495767 is a `hidden beast` number, since 6 + 28 + 49 + 576 + 7 = 666.

It is not a de Polignac number, because 628495767 - 2³ = 628495759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628495757) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 574473 + ... + 575565.

It is an arithmetic number, because the mean of its divisors is an integer number (24356816).

Almost surely, 2^628495767 is an apocalyptic number.

628495767 is a deficient number, since it is larger than the sum of its proper divisors (345776873).

628495767 is a wasteful number, since it uses less digits than its factorization.

628495767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1356 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 628495767 is about 25069.8178493582. The cubic root of 628495767 is about 856.5790579120.

The spelling of 628495767 in words is "six hundred twenty-eight million, four hundred ninety-five thousand, seven hundred sixty-seven".