99612393 has 16 divisors (see below), whose sum is σ = 137719296. Its totient is φ = 63976320.

The previous prime is 99612391. The next prime is 99612407. The reversal of 99612393 is 39321699.

It is a happy number.

It is not a de Polignac number, because 99612393 - 2¹ = 99612391 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99612391) 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, 19371 + ... + 23967.

It is an arithmetic number, because the mean of its divisors is an integer number (8607456).

Almost surely, 2^99612393 is an apocalyptic number.

99612393 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

99612393 is a deficient number, since it is larger than the sum of its proper divisors (38106903).

99612393 is a wasteful number, since it uses less digits than its factorization.

99612393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864.

The product of its digits is 78732, while the sum is 42.

The square root of 99612393 is about 9980.6008336172. The cubic root of 99612393 is about 463.5584027491.

The spelling of 99612393 in words is "ninety-nine million, six hundred twelve thousand, three hundred ninety-three".