99542849 has 16 divisors (see below), whose sum is σ = 115458048. Its totient is φ = 84061392.

The previous prime is 99542831. The next prime is 99542857. The reversal of 99542849 is 94824599.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99542849 - 2⁸ = 99542593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99542797 and 99542806.

It is not an unprimeable number, because it can be changed into a prime (99542869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259712 + ... + 260094.

It is an arithmetic number, because the mean of its divisors is an integer number (7216128).

Almost surely, 2^99542849 is an apocalyptic number.

It is an amenable number.

99542849 is a deficient number, since it is larger than the sum of its proper divisors (15915199).

99542849 is a wasteful number, since it uses less digits than its factorization.

99542849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 933120, while the sum is 50.

The square root of 99542849 is about 9977.1162667376. The cubic root of 99542849 is about 463.4505004767.

The spelling of 99542849 in words is "ninety-nine million, five hundred forty-two thousand, eight hundred forty-nine".