99379745 has 4 divisors (see below), whose sum is σ = 119255700. Its totient is φ = 79503792.

The previous prime is 99379733. The next prime is 99379799. The reversal of 99379745 is 54797399.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21446161 + 77933584 = 4631^2 + 8828^2 .

It is a cyclic number.

It is not a de Polignac number, because 99379745 - 2⁴ = 99379729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9937970 + ... + 9937979.

It is an arithmetic number, because the mean of its divisors is an integer number (29813925).

Almost surely, 2^99379745 is an apocalyptic number.

It is an amenable number.

99379745 is a deficient number, since it is larger than the sum of its proper divisors (19875955).

99379745 is a wasteful number, since it uses less digits than its factorization.

99379745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19875954.

The product of its digits is 2143260, while the sum is 53.

The square root of 99379745 is about 9968.9390107473. The cubic root of 99379745 is about 463.1972361634.

The spelling of 99379745 in words is "ninety-nine million, three hundred seventy-nine thousand, seven hundred forty-five".