73421814 has 16 divisors (see below), whose sum is σ = 154572480. Its totient is φ = 23185800.

The previous prime is 73421807. The next prime is 73421837. The reversal of 73421814 is 41812437.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 321912 + ... + 322139.

It is an arithmetic number, because the mean of its divisors is an integer number (9660780).

Almost surely, 2^73421814 is an apocalyptic number.

73421814 is an abundant number, since it is smaller than the sum of its proper divisors (81150666).

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

73421814 is a wasteful number, since it uses less digits than its factorization.

73421814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644075.

The product of its digits is 5376, while the sum is 30.

The square root of 73421814 is about 8568.6529863217. The cubic root of 73421814 is about 418.7373530301.

The spelling of 73421814 in words is "seventy-three million, four hundred twenty-one thousand, eight hundred fourteen".