99311949 has 24 divisors (see below), whose sum is σ = 156809952. Its totient is φ = 60066720.

The previous prime is 99311939. The next prime is 99311957. The reversal of 99311949 is 94911399.

It is not a de Polignac number, because 99311949 - 2¹² = 99307853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99311929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81267 + ... + 82479.

It is an arithmetic number, because the mean of its divisors is an integer number (6533748).

Almost surely, 2^99311949 is an apocalyptic number.

99311949 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

99311949 is a deficient number, since it is larger than the sum of its proper divisors (57498003).

99311949 is a wasteful number, since it uses less digits than its factorization.

99311949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2054 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 99311949 is about 9965.5380687648. The cubic root of 99311949 is about 463.0918824904.

The spelling of 99311949 in words is "ninety-nine million, three hundred eleven thousand, nine hundred forty-nine".