99263287 has 4 divisors (see below), whose sum is σ = 100890616. Its totient is φ = 97635960.

The previous prime is 99263279. The next prime is 99263293. The reversal of 99263287 is 78236299.

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

It is a cyclic number.

It is not a de Polignac number, because 99263287 - 2³ = 99263279 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 (99263257) 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, 813573 + ... + 813694.

It is an arithmetic number, because the mean of its divisors is an integer number (25222654).

Almost surely, 2^99263287 is an apocalyptic number.

99263287 is a deficient number, since it is larger than the sum of its proper divisors (1627329).

99263287 is a wasteful number, since it uses less digits than its factorization.

99263287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627328.

The product of its digits is 326592, while the sum is 46.

The square root of 99263287 is about 9963.0962556828. The cubic root of 99263287 is about 463.0162331214.

The spelling of 99263287 in words is "ninety-nine million, two hundred sixty-three thousand, two hundred eighty-seven".