73996018 has 4 divisors (see below), whose sum is σ = 110994030. Its totient is φ = 36998008.

The previous prime is 73995979. The next prime is 73996049. The reversal of 73996018 is 81069937.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53538489 + 20457529 = 7317^2 + 4523^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18499003 + ... + 18499006.

Almost surely, 2^73996018 is an apocalyptic number.

73996018 is a deficient number, since it is larger than the sum of its proper divisors (36998012).

73996018 is a wasteful number, since it uses less digits than its factorization.

73996018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36998011.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 73996018 is about 8602.0938148802. The cubic root of 73996018 is about 419.8261147161.

The spelling of 73996018 in words is "seventy-three million, nine hundred ninety-six thousand, eighteen".