263494676 has 6 divisors (see below), whose sum is σ = 461115690. Its totient is φ = 131747336.

The previous prime is 263494663. The next prime is 263494681. The reversal of 263494676 is 676494362.

263494676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 263283076 + 211600 = 16226^2 + 460^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 263494676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32936831 + ... + 32936838.

It is an arithmetic number, because the mean of its divisors is an integer number (76852615).

Almost surely, 2^263494676 is an apocalyptic number.

It is an amenable number.

263494676 is a deficient number, since it is larger than the sum of its proper divisors (197621014).

263494676 is a wasteful number, since it uses less digits than its factorization.

263494676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65873673 (or 65873671 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 47.

The square root of 263494676 is about 16232.5190897778. The cubic root of 263494676 is about 641.0973005106.

The spelling of 263494676 in words is "two hundred sixty-three million, four hundred ninety-four thousand, six hundred seventy-six".