99507660 has 96 divisors (see below), whose sum is σ = 332301312. Its totient is φ = 21753600.

The previous prime is 99507649. The next prime is 99507721. The reversal of 99507660 is 6670599.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4510 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (3461472).

Almost surely, 2^99507660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99507660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166150656).

99507660 is an abundant number, since it is smaller than the sum of its proper divisors (232793652).

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

99507660 is a wasteful number, since it uses less digits than its factorization.

99507660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343 (or 10341 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 99507660 is about 9975.3526253461. The cubic root of 99507660 is about 463.3958831874.

The spelling of 99507660 in words is "ninety-nine million, five hundred seven thousand, six hundred sixty".