73727998 has 4 divisors (see below), whose sum is σ = 110592000. Its totient is φ = 36863998.

The previous prime is 73727981. The next prime is 73728019. The reversal of 73727998 is 89972737.

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: 89972737 = 41 ⋅2194457.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18431998 + ... + 18432001.

It is an arithmetic number, because the mean of its divisors is an integer number (27648000).

Almost surely, 2^73727998 is an apocalyptic number.

73727998 is a deficient number, since it is larger than the sum of its proper divisors (36864002).

73727998 is a wasteful number, since it uses less digits than its factorization.

73727998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36864001.

The product of its digits is 1333584, while the sum is 52.

The square root of 73727998 is about 8586.5009171373. The cubic root of 73727998 is about 419.3186192818.

The spelling of 73727998 in words is "seventy-three million, seven hundred twenty-seven thousand, nine hundred ninety-eight".