73991896 has 16 divisors (see below), whose sum is σ = 151347240. Its totient is φ = 33632640.

The previous prime is 73991887. The next prime is 73991903. The reversal of 73991896 is 69819937.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420321 + ... + 420496.

Almost surely, 2^73991896 is an apocalyptic number.

It is an amenable number.

73991896 is an abundant number, since it is smaller than the sum of its proper divisors (77355344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73991896 is a wasteful number, since it uses less digits than its factorization.

73991896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840834 (or 840830 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The square root of 73991896 is about 8601.8542187135. The cubic root of 73991896 is about 419.8183190021.

The spelling of 73991896 in words is "seventy-three million, nine hundred ninety-one thousand, eight hundred ninety-six".