99209413 has 4 divisors (see below), whose sum is σ = 99244620. Its totient is φ = 99174208.

The previous prime is 99209347. The next prime is 99209417. The reversal of 99209413 is 31490299.

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 41190724 + 58018689 = 6418^2 + 7617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99209413 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 (99209417) 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, 12970 + ... + 19147.

It is an arithmetic number, because the mean of its divisors is an integer number (24811155).

Almost surely, 2^99209413 is an apocalyptic number.

It is an amenable number.

99209413 is a deficient number, since it is larger than the sum of its proper divisors (35207).

99209413 is a wasteful number, since it uses less digits than its factorization.

99209413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35206.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 99209413 is about 9960.3922111531. The cubic root of 99209413 is about 462.9324523956.

The spelling of 99209413 in words is "ninety-nine million, two hundred nine thousand, four hundred thirteen".