99974 has 16 divisors (see below), whose sum is σ = 176928. Its totient is φ = 41472.

The previous prime is 99971. The next prime is 99989. The reversal of 99974 is 47999.

99974 is nontrivially palindromic in base 6.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 614.

It is an arithmetic number, because the mean of its divisors is an integer number (11058).

2⁹⁹⁹⁷⁴ is an apocalyptic number.

99974 is a deficient number, since it is larger than the sum of its proper divisors (76954).

99974 is a wasteful number, since it uses less digits than its factorization.

99974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its digits is 20412, while the sum is 38.

The square root of 99974 is about 316.1866537348. The cubic root of 99974 is about 46.4118652771.

It can be divided in two parts, 9997 and 4, that added together give a palindrome (10001).

The spelling of 99974 in words is "ninety-nine thousand, nine hundred seventy-four".