99612394 has 12 divisors (see below), whose sum is σ = 173813634. Its totient is φ = 42690984.

The previous prime is 99612391. The next prime is 99612407. The reversal of 99612394 is 49321699.

It can be written as a sum of positive squares in only one way, i.e., 63792169 + 35820225 = 7987^2 + 5985^2 .

It is a super-2 number, since 2×99612394² = 19845258076822472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99612394.

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 5 ways as a sum of consecutive naturals, for example, 508129 + ... + 508324.

Almost surely, 2^99612394 is an apocalyptic number.

99612394 is a deficient number, since it is larger than the sum of its proper divisors (74201240).

99612394 is a wasteful number, since it uses less digits than its factorization.

99612394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016469 (or 1016462 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 99612394 is about 9980.6008837144. The cubic root of 99612394 is about 463.5584043003.

The spelling of 99612394 in words is "ninety-nine million, six hundred twelve thousand, three hundred ninety-four".