99986601 has 16 divisors (see below), whose sum is σ = 156623040. Its totient is φ = 55936320.

The previous prime is 99986597. The next prime is 99986609. The reversal of 99986601 is 10668999.

It is not a de Polignac number, because 99986601 - 2² = 99986597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99986609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116106 + ... + 116963.

It is an arithmetic number, because the mean of its divisors is an integer number (9788940).

Almost surely, 2^99986601 is an apocalyptic number.

It is an amenable number.

99986601 is a deficient number, since it is larger than the sum of its proper divisors (56636439).

99986601 is a wasteful number, since it uses less digits than its factorization.

99986601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233096.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 99986601 is about 9999.3300275568. The cubic root of 99986601 is about 464.1381515524.

The spelling of 99986601 in words is "ninety-nine million, nine hundred eighty-six thousand, six hundred one".