73994891 has 8 divisors (see below), whose sum is σ = 75944544. Its totient is φ = 72069120.

The previous prime is 73994881. The next prime is 73994903. The reversal of 73994891 is 19849937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73994891 - 2⁶ = 73994827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73994831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 395 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (9493068).

Almost surely, 2^73994891 is an apocalyptic number.

73994891 is a deficient number, since it is larger than the sum of its proper divisors (1949653).

73994891 is a wasteful number, since it uses less digits than its factorization.

73994891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11941.

The product of its digits is 489888, while the sum is 50.

The square root of 73994891 is about 8602.0283073238. The cubic root of 73994891 is about 419.8239833112.

The spelling of 73994891 in words is "seventy-three million, nine hundred ninety-four thousand, eight hundred ninety-one".