73316891 has 4 divisors (see below), whose sum is σ = 75681984. Its totient is φ = 70951800.

The previous prime is 73316863. The next prime is 73316917. The reversal of 73316891 is 19861337.

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

It is a cyclic number.

It is not a de Polignac number, because 73316891 - 2¹⁸ = 73054747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73310891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182500 + ... + 1182561.

It is an arithmetic number, because the mean of its divisors is an integer number (18920496).

Almost surely, 2^73316891 is an apocalyptic number.

73316891 is a deficient number, since it is larger than the sum of its proper divisors (2365093).

73316891 is a wasteful number, since it uses less digits than its factorization.

73316891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365092.

The product of its digits is 27216, while the sum is 38.

The square root of 73316891 is about 8562.5283065226. The cubic root of 73316891 is about 418.5377932446.

The spelling of 73316891 in words is "seventy-three million, three hundred sixteen thousand, eight hundred ninety-one".