73989994 has 32 divisors (see below), whose sum is σ = 126443520. Its totient is φ = 32227200.

The previous prime is 73989983. The next prime is 73989997. The reversal of 73989994 is 49998937.

It is not an unprimeable number, because it can be changed into a prime (73989997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31927 + ... + 34165.

It is an arithmetic number, because the mean of its divisors is an integer number (3951360).

Almost surely, 2^73989994 is an apocalyptic number.

73989994 is a deficient number, since it is larger than the sum of its proper divisors (52453526).

73989994 is a wasteful number, since it uses less digits than its factorization.

73989994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its digits is 4408992, while the sum is 58.

The square root of 73989994 is about 8601.7436604447. The cubic root of 73989994 is about 419.8147217556.

The spelling of 73989994 in words is "seventy-three million, nine hundred eighty-nine thousand, nine hundred ninety-four".