83993674 has 4 divisors (see below), whose sum is σ = 125990514. Its totient is φ = 41996836.

The previous prime is 83993671. The next prime is 83993717. The reversal of 83993674 is 47639938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47639938 = 2 ⋅23819969.

It can be written as a sum of positive squares in only one way, i.e., 82682649 + 1311025 = 9093^2 + 1145^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83993671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20998417 + ... + 20998420.

Almost surely, 2^83993674 is an apocalyptic number.

83993674 is a deficient number, since it is larger than the sum of its proper divisors (41996840).

83993674 is a wasteful number, since it uses less digits than its factorization.

83993674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41996839.

The product of its digits is 979776, while the sum is 49.

The square root of 83993674 is about 9164.8062718205. The cubic root of 83993674 is about 437.9409197294.

The spelling of 83993674 in words is "eighty-three million, nine hundred ninety-three thousand, six hundred seventy-four".