99495791 has 4 divisors (see below), whose sum is σ = 99516432. Its totient is φ = 99475152.

The previous prime is 99495763. The next prime is 99495811. The reversal of 99495791 is 19759499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19759499 = 41 ⋅481939.

It is a cyclic number.

It is not a de Polignac number, because 99495791 - 2²⁶ = 32386927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99495731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (24879108).

Almost surely, 2^99495791 is an apocalyptic number.

99495791 is a deficient number, since it is larger than the sum of its proper divisors (20641).

99495791 is a wasteful number, since it uses less digits than its factorization.

99495791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640.

The product of its digits is 918540, while the sum is 53.

The square root of 99495791 is about 9974.7576912926. The cubic root of 99495791 is about 463.3774582594.

The spelling of 99495791 in words is "ninety-nine million, four hundred ninety-five thousand, seven hundred ninety-one".