99993946 has 8 divisors (see below), whose sum is σ = 161528724. Its totient is φ = 46151040.

The previous prime is 99993923. The next prime is 99993947. The reversal of 99993946 is 64939999.

It can be written as a sum of positive squares in 2 ways, for example, as 96530625 + 3463321 = 9825^2 + 1861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (99993947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922935 + ... + 1922986.

Almost surely, 2^99993946 is an apocalyptic number.

99993946 is a deficient number, since it is larger than the sum of its proper divisors (61534778).

99993946 is a wasteful number, since it uses less digits than its factorization.

99993946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845936.

The product of its digits is 4251528, while the sum is 58.

The square root of 99993946 is about 9999.6972954185. The cubic root of 99993946 is about 464.1495164460.

The spelling of 99993946 in words is "ninety-nine million, nine hundred ninety-three thousand, nine hundred forty-six".