99959747 has 4 divisors (see below), whose sum is σ = 101654040. Its totient is φ = 98265456.

The previous prime is 99959731. The next prime is 99959753. The reversal of 99959747 is 74795999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74795999 = 701 ⋅106699.

It is a cyclic number.

It is not a de Polignac number, because 99959747 - 2⁴ = 99959731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 1694233 = 99959747 / (9 + 9 + 9 + 5 + 9 + 7 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99959707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847058 + ... + 847175.

It is an arithmetic number, because the mean of its divisors is an integer number (25413510).

Almost surely, 2^99959747 is an apocalyptic number.

99959747 is a deficient number, since it is larger than the sum of its proper divisors (1694293).

99959747 is a wasteful number, since it uses less digits than its factorization.

99959747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694292.

The product of its digits is 6429780, while the sum is 59.

The square root of 99959747 is about 9997.9871474212. The cubic root of 99959747 is about 464.0965957112.

The spelling of 99959747 in words is "ninety-nine million, nine hundred fifty-nine thousand, seven hundred forty-seven".