73830321 has 12 divisors (see below), whose sum is σ = 107641872. Its totient is φ = 48759576.

The previous prime is 73830311. The next prime is 73830331. The reversal of 73830321 is 12303837.

It is an interprime number because it is at equal distance from previous prime (73830311) and next prime (73830331).

It is not a de Polignac number, because 73830321 - 2⁷ = 73830193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73830311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37371 + ... + 39296.

It is an arithmetic number, because the mean of its divisors is an integer number (8970156).

Almost surely, 2^73830321 is an apocalyptic number.

It is an amenable number.

73830321 is a deficient number, since it is larger than the sum of its proper divisors (33811551).

73830321 is a wasteful number, since it uses less digits than its factorization.

73830321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76780 (or 76777 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 73830321 is about 8592.4572154885. The cubic root of 73830321 is about 419.5125126313.

The spelling of 73830321 in words is "seventy-three million, eight hundred thirty thousand, three hundred twenty-one".