633620788 has 12 divisors (see below), whose sum is σ = 1109035620. Its totient is φ = 316753472.

The previous prime is 633620747. The next prime is 633620789. The reversal of 633620788 is 887026336.

It can be written as a sum of positive squares in 2 ways, for example, as 78641424 + 554979364 = 8868^2 + 23558^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633620789) 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, 19920 + ... + 40792.

It is an arithmetic number, because the mean of its divisors is an integer number (92419635).

Almost surely, 2^633620788 is an apocalyptic number.

It is an amenable number.

633620788 is a deficient number, since it is larger than the sum of its proper divisors (475414832).

633620788 is a wasteful number, since it uses less digits than its factorization.

633620788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28466 (or 28464 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 633620788 is about 25171.8252814531. The cubic root of 633620788 is about 858.9010607287.

The spelling of 633620788 in words is "six hundred thirty-three million, six hundred twenty thousand, seven hundred eighty-eight".