73099730 has 24 divisors (see below), whose sum is σ = 144631116. Its totient is φ = 26581280.

The previous prime is 73099723. The next prime is 73099751. The reversal of 73099730 is 3799037.

It can be written as a sum of positive squares in 2 ways, for example, as 71554681 + 1545049 = 8459^2 + 1243^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28997 + ... + 31416.

Almost surely, 2^73099730 is an apocalyptic number.

73099730 is a deficient number, since it is larger than the sum of its proper divisors (71531386).

73099730 is a wasteful number, since it uses less digits than its factorization.

73099730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60442 (or 60431 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 73099730 is about 8549.8380101614. The cubic root of 73099730 is about 418.1241551786.

The spelling of 73099730 in words is "seventy-three million, ninety-nine thousand, seven hundred thirty".