99427099 has 4 divisors (see below), whose sum is σ = 101303136. Its totient is φ = 97551064.

The previous prime is 99427063. The next prime is 99427121. The reversal of 99427099 is 99072499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99072499 = 229 ⋅432631.

It is a cyclic number.

It is not a de Polignac number, because 99427099 - 2¹⁷ = 99296027 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99427049) 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, 937939 + ... + 938044.

It is an arithmetic number, because the mean of its divisors is an integer number (25325784).

Almost surely, 2^99427099 is an apocalyptic number.

99427099 is a deficient number, since it is larger than the sum of its proper divisors (1876037).

99427099 is a wasteful number, since it uses less digits than its factorization.

99427099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876036.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 99427099 is about 9971.3138051111. The cubic root of 99427099 is about 463.2707949453.

The spelling of 99427099 in words is "ninety-nine million, four hundred twenty-seven thousand, ninety-nine".