99993768 has 32 divisors (see below), whose sum is σ = 285696960. Its totient is φ = 28569600.

The previous prime is 99993767. The next prime is 99993781. The reversal of 99993768 is 86739999.

It is not an unprimeable number, because it can be changed into a prime (99993767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297433 + ... + 297768.

It is an arithmetic number, because the mean of its divisors is an integer number (8928030).

Almost surely, 2^99993768 is an apocalyptic number.

It is an amenable number.

99993768 is an abundant number, since it is smaller than the sum of its proper divisors (185703192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99993768 is a wasteful number, since it uses less digits than its factorization.

99993768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595217 (or 595213 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 60.

The square root of 99993768 is about 9999.6883951451. The cubic root of 99993768 is about 464.1492410338.

The spelling of 99993768 in words is "ninety-nine million, nine hundred ninety-three thousand, seven hundred sixty-eight".