99993874 has 4 divisors (see below), whose sum is σ = 149990814. Its totient is φ = 49996936.

The previous prime is 99993841. The next prime is 99993889. The reversal of 99993874 is 47839999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47839999 = 2689 ⋅17791.

It can be written as a sum of positive squares in only one way, i.e., 65853225 + 34140649 = 8115^2 + 5843^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24998467 + ... + 24998470.

Almost surely, 2^99993874 is an apocalyptic number.

99993874 is a deficient number, since it is larger than the sum of its proper divisors (49996940).

99993874 is a wasteful number, since it uses less digits than its factorization.

99993874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49996939.

The product of its digits is 4408992, while the sum is 58.

The square root of 99993874 is about 9999.6936953089. The cubic root of 99993874 is about 464.1494050433.

The spelling of 99993874 in words is "ninety-nine million, nine hundred ninety-three thousand, eight hundred seventy-four".