99874 has 4 divisors (see below), whose sum is σ = 149814. Its totient is φ = 49936.

The previous prime is 99871. The next prime is 99877. The reversal of 99874 is 47899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47899 = 19 ⋅2521.

It is an interprime number because it is at equal distance from previous prime (99871) and next prime (99877).

It can be written as a sum of positive squares in only one way, i.e., 94249 + 5625 = 307^2 + 75^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24967 + ... + 24970.

2⁹⁹⁸⁷⁴ is an apocalyptic number.

99874 is a deficient number, since it is larger than the sum of its proper divisors (49940).

99874 is a wasteful number, since it uses less digits than its factorization.

99874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49939.

The product of its digits is 18144, while the sum is 37.

The square root of 99874 is about 316.0284797293. The cubic root of 99874 is about 46.3963854695.

The spelling of 99874 in words is "ninety-nine thousand, eight hundred seventy-four".