73721094 has 32 divisors (see below), whose sum is σ = 153535200. Its totient is φ = 23576832.

The previous prime is 73721071. The next prime is 73721099. The reversal of 73721094 is 49012737.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73721099) 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 15 ways as a sum of consecutive naturals, for example, 13932 + ... + 18480.

It is an arithmetic number, because the mean of its divisors is an integer number (4797975).

Almost surely, 2^73721094 is an apocalyptic number.

73721094 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

73721094 is an abundant number, since it is smaller than the sum of its proper divisors (79814106).

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

73721094 is a wasteful number, since it uses less digits than its factorization.

73721094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 73721094 is about 8586.0988813314. The cubic root of 73721094 is about 419.3055303324.

The spelling of 73721094 in words is "seventy-three million, seven hundred twenty-one thousand, ninety-four".