93799991 has 4 divisors (see below), whose sum is σ = 93933000. Its totient is φ = 93666984.

The previous prime is 93799987. The next prime is 93799997. The reversal of 93799991 is 19999739.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 93799991 - 2² = 93799987 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 (93799997) 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, 65441 + ... + 66858.

It is an arithmetic number, because the mean of its divisors is an integer number (23483250).

Almost surely, 2^93799991 is an apocalyptic number.

93799991 is a deficient number, since it is larger than the sum of its proper divisors (133009).

93799991 is a wasteful number, since it uses less digits than its factorization.

93799991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133008.

The product of its digits is 1240029, while the sum is 56.

The square root of 93799991 is about 9685.0395456085. The cubic root of 93799991 is about 454.3608802382.

The spelling of 93799991 in words is "ninety-three million, seven hundred ninety-nine thousand, nine hundred ninety-one".