73303231 has 8 divisors (see below), whose sum is σ = 77460480. Its totient is φ = 69226872.

The previous prime is 73303211. The next prime is 73303259. The reversal of 73303231 is 13230337.

73303231 = 924² + 925² + ... + 1002².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73303231 - 2⁷ = 73303103 is a prime.

It is a super-2 number, since 2×73303231² = 10746727350078722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73303211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18355 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (9682560).

Almost surely, 2^73303231 is an apocalyptic number.

73303231 is a deficient number, since it is larger than the sum of its proper divisors (4157249).

73303231 is a wasteful number, since it uses less digits than its factorization.

73303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40445.

The product of its (nonzero) digits is 1134, while the sum is 22.

The square root of 73303231 is about 8561.7306077685. The cubic root of 73303231 is about 418.5117984100.

Adding to 73303231 its reverse (13230337), we get a palindrome (86533568).

The spelling of 73303231 in words is "seventy-three million, three hundred three thousand, two hundred thirty-one".