973323381 has 16 divisors (see below), whose sum is σ = 1337126720. Its totient is φ = 629493120.

The previous prime is 973323359. The next prime is 973323383. The reversal of 973323381 is 183323379.

It is not a de Polignac number, because 973323381 - 2¹¹ = 973321333 is a prime.

It is a super-2 number, since 2×973323381² = 1894716808002542322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (973323383) 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, 23071 + ... + 49788.

It is an arithmetic number, because the mean of its divisors is an integer number (83570420).

Almost surely, 2^973323381 is an apocalyptic number.

It is an amenable number.

973323381 is a deficient number, since it is larger than the sum of its proper divisors (363803339).

973323381 is a wasteful number, since it uses less digits than its factorization.

973323381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72996.

The product of its digits is 81648, while the sum is 39.

The square root of 973323381 is about 31198.1310497921. The cubic root of 973323381 is about 991.0275292116.

The spelling of 973323381 in words is "nine hundred seventy-three million, three hundred twenty-three thousand, three hundred eighty-one".