9997226263 has 4 divisors (see below), whose sum is σ = 9997860208. Its totient is φ = 9996592320.

The previous prime is 9997226243. The next prime is 9997226279. The reversal of 9997226263 is 3626227999.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9997226263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997226233) 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, 292698 + ... + 325063.

It is an arithmetic number, because the mean of its divisors is an integer number (2499465052).

Almost surely, 2^9997226263 is an apocalyptic number.

9997226263 is a deficient number, since it is larger than the sum of its proper divisors (633945).

9997226263 is a wasteful number, since it uses less digits than its factorization.

9997226263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633944.

The product of its digits is 4408992, while the sum is 55.

The square root of 9997226263 is about 99986.1303531645. The cubic root of 9997226263 is about 2154.2354771048.

The spelling of 9997226263 in words is "nine billion, nine hundred ninety-seven million, two hundred twenty-six thousand, two hundred sixty-three".