99686349 has 16 divisors (see below), whose sum is σ = 168781440. Its totient is φ = 56963520.

The previous prime is 99686339. The next prime is 99686357. The reversal of 99686349 is 94368699.

It is a happy number.

It is not a de Polignac number, because 99686349 - 2⁴ = 99686333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99686295 and 99686304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99686309) 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, 263532 + ... + 263909.

It is an arithmetic number, because the mean of its divisors is an integer number (10548840).

Almost surely, 2^99686349 is an apocalyptic number.

It is an amenable number.

99686349 is a deficient number, since it is larger than the sum of its proper divisors (69095091).

99686349 is a wasteful number, since it uses less digits than its factorization.

99686349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527457 (or 527451 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 99686349 is about 9984.3051335584. The cubic root of 99686349 is about 463.6730954541.

The spelling of 99686349 in words is "ninety-nine million, six hundred eighty-six thousand, three hundred forty-nine".