99742601 has 16 divisors (see below), whose sum is σ = 118040064. Its totient is φ = 82508544.

The previous prime is 99742541. The next prime is 99742613. The reversal of 99742601 is 10624799.

It is a cyclic number.

It is not a de Polignac number, because 99742601 - 2²⁶ = 32633737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99742681) 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, 21941 + ... + 26093.

It is an arithmetic number, because the mean of its divisors is an integer number (7377504).

Almost surely, 2^99742601 is an apocalyptic number.

It is an amenable number.

99742601 is a deficient number, since it is larger than the sum of its proper divisors (18297463).

99742601 is a wasteful number, since it uses less digits than its factorization.

99742601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 99742601 is about 9987.1217575436. The cubic root of 99742601 is about 463.7602944027.

The spelling of 99742601 in words is "ninety-nine million, seven hundred forty-two thousand, six hundred one".