973223431 has 4 divisors (see below), whose sum is σ = 973769832. Its totient is φ = 972677032.

The previous prime is 973223423. The next prime is 973223473. The reversal of 973223431 is 134322379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134322379 = 491 ⋅273569.

It is a cyclic number.

It is not a de Polignac number, because 973223431 - 2³ = 973223423 is a prime.

It is a super-2 number, since 2×973223431² = 1894327693294823522, 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 (973223401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270520 + ... + 274093.

It is an arithmetic number, because the mean of its divisors is an integer number (243442458).

Almost surely, 2^973223431 is an apocalyptic number.

973223431 is a deficient number, since it is larger than the sum of its proper divisors (546401).

973223431 is a wasteful number, since it uses less digits than its factorization.

973223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546400.

The product of its digits is 27216, while the sum is 34.

The square root of 973223431 is about 31196.5291498910. The cubic root of 973223431 is about 990.9936053742.

The spelling of 973223431 in words is "nine hundred seventy-three million, two hundred twenty-three thousand, four hundred thirty-one".