73121694 has 32 divisors (see below), whose sum is σ = 150961536. Its totient is φ = 23594400.

The previous prime is 73121683. The next prime is 73121749. The reversal of 73121694 is 49612137.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49669 + ... + 51119.

It is an arithmetic number, because the mean of its divisors is an integer number (4717548).

Almost surely, 2^73121694 is an apocalyptic number.

73121694 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

73121694 is an abundant number, since it is smaller than the sum of its proper divisors (77839842).

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

73121694 is a wasteful number, since it uses less digits than its factorization.

73121694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its digits is 9072, while the sum is 33.

The square root of 73121694 is about 8551.1223824712. The cubic root of 73121694 is about 418.1660283807.

The spelling of 73121694 in words is "seventy-three million, one hundred twenty-one thousand, six hundred ninety-four".