631774064 has 10 divisors (see below), whose sum is σ = 1224062280. Its totient is φ = 315887024.

The previous prime is 631774061. The next prime is 631774081. The reversal of 631774064 is 460477136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631774061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19742924 + ... + 19742955.

It is an arithmetic number, because the mean of its divisors is an integer number (122406228).

Almost surely, 2^631774064 is an apocalyptic number.

It is an amenable number.

631774064 is a deficient number, since it is larger than the sum of its proper divisors (592288216).

631774064 is a wasteful number, since it uses less digits than its factorization.

631774064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39485887 (or 39485881 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 631774064 is about 25135.1161525066. The cubic root of 631774064 is about 858.0658099970.

The spelling of 631774064 in words is "six hundred thirty-one million, seven hundred seventy-four thousand, sixty-four".