99602643 has 24 divisors (see below), whose sum is σ = 163577232. Its totient is φ = 53566464.

The previous prime is 99602639. The next prime is 99602681. The reversal of 99602643 is 34620699.

It is a happy number.

It is not a de Polignac number, because 99602643 - 2² = 99602639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99602603) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17430 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (6815718).

Almost surely, 2^99602643 is an apocalyptic number.

99602643 is a deficient number, since it is larger than the sum of its proper divisors (63974589).

99602643 is a wasteful number, since it uses less digits than its factorization.

99602643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39891 (or 39884 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 99602643 is about 9980.1123741168. The cubic root of 99602643 is about 463.5432779848.

The spelling of 99602643 in words is "ninety-nine million, six hundred two thousand, six hundred forty-three".