263320898 has 4 divisors (see below), whose sum is σ = 394981350. Its totient is φ = 131660448.

The previous prime is 263320891. The next prime is 263320927. The reversal of 263320898 is 898023362.

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., 257185369 + 6135529 = 16037^2 + 2477^2 .

It is not an unprimeable number, because it can be changed into a prime (263320891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65830223 + ... + 65830226.

Almost surely, 2^263320898 is an apocalyptic number.

263320898 is a deficient number, since it is larger than the sum of its proper divisors (131660452).

263320898 is a wasteful number, since it uses less digits than its factorization.

263320898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131660451.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 263320898 is about 16227.1654333097. The cubic root of 263320898 is about 640.9563323145.

The spelling of 263320898 in words is "two hundred sixty-three million, three hundred twenty thousand, eight hundred ninety-eight".