99768459 has 24 divisors (see below), whose sum is σ = 155303568. Its totient is φ = 56804160.

The previous prime is 99768433. The next prime is 99768481. The reversal of 99768459 is 95486799.

It is not a de Polignac number, because 99768459 - 2⁸ = 99768203 is a prime.

It is a super-2 number, since 2×99768459² = 19907490822469362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99768399 and 99768408.

It is not an unprimeable number, because it can be changed into a prime (99768499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45529 + ... + 47669.

It is an arithmetic number, because the mean of its divisors is an integer number (6470982).

Almost surely, 2^99768459 is an apocalyptic number.

99768459 is a deficient number, since it is larger than the sum of its proper divisors (55535109).

99768459 is a wasteful number, since it uses less digits than its factorization.

99768459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475 (or 2468 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 99768459 is about 9988.4162408262. The cubic root of 99768459 is about 463.8003671414.

The spelling of 99768459 in words is "ninety-nine million, seven hundred sixty-eight thousand, four hundred fifty-nine".