263005996 has 12 divisors (see below), whose sum is σ = 502102440. Its totient is φ = 119548160.

The previous prime is 263005993. The next prime is 263006039. The reversal of 263005996 is 699500362.

It is not an unprimeable number, because it can be changed into a prime (263005993) 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, 2988661 + ... + 2988748.

It is an arithmetic number, because the mean of its divisors is an integer number (41841870).

Almost surely, 2^263005996 is an apocalyptic number.

It is an amenable number.

263005996 is a deficient number, since it is larger than the sum of its proper divisors (239096444).

263005996 is a wasteful number, since it uses less digits than its factorization.

263005996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977424 (or 5977422 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 263005996 is about 16217.4596037727. The cubic root of 263005996 is about 640.7007266453.

The spelling of 263005996 in words is "two hundred sixty-three million, five thousand, nine hundred ninety-six".