632787266 has 4 divisors (see below), whose sum is σ = 949180902. Its totient is φ = 316393632.

The previous prime is 632787263. The next prime is 632787271. The reversal of 632787266 is 662787236.

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

It can be written as a sum of positive squares in only one way, i.e., 394856641 + 237930625 = 19871^2 + 15425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 632787266.

It is not an unprimeable number, because it can be changed into a prime (632787263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158196815 + ... + 158196818.

Almost surely, 2^632787266 is an apocalyptic number.

632787266 is a deficient number, since it is larger than the sum of its proper divisors (316393636).

632787266 is a wasteful number, since it uses less digits than its factorization.

632787266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316393635.

The product of its digits is 1016064, while the sum is 47.

The square root of 632787266 is about 25155.2631868561. The cubic root of 632787266 is about 858.5242701212.

The spelling of 632787266 in words is "six hundred thirty-two million, seven hundred eighty-seven thousand, two hundred sixty-six".