99891614 has 4 divisors (see below), whose sum is σ = 149837424. Its totient is φ = 49945806.

The previous prime is 99891593. The next prime is 99891637. The reversal of 99891614 is 41619899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41619899 = 19 ⋅2190521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24972902 + ... + 24972905.

It is an arithmetic number, because the mean of its divisors is an integer number (37459356).

Almost surely, 2^99891614 is an apocalyptic number.

99891614 is a deficient number, since it is larger than the sum of its proper divisors (49945810).

99891614 is a wasteful number, since it uses less digits than its factorization.

99891614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49945809.

The product of its digits is 139968, while the sum is 47.

The square root of 99891614 is about 9994.5792307630. The cubic root of 99891614 is about 463.9911283232.

The spelling of 99891614 in words is "ninety-nine million, eight hundred ninety-one thousand, six hundred fourteen".