73813894 has 24 divisors (see below), whose sum is σ = 140508648. Its totient is φ = 28758240.

The previous prime is 73813891. The next prime is 73813921. The reversal of 73813894 is 49831837.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 73813894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73813891) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 33159 + ... + 35314.

It is an arithmetic number, because the mean of its divisors is an integer number (5854527).

Almost surely, 2^73813894 is an apocalyptic number.

73813894 is a deficient number, since it is larger than the sum of its proper divisors (66694754).

73813894 is a wasteful number, since it uses less digits than its factorization.

73813894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68500 (or 68493 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 73813894 is about 8591.5012657859. The cubic root of 73813894 is about 419.4813969455.

The spelling of 73813894 in words is "seventy-three million, eight hundred thirteen thousand, eight hundred ninety-four".