973406731 has 4 divisors (see below), whose sum is σ = 1061898264. Its totient is φ = 884915200.

The previous prime is 973406717. The next prime is 973406743. The reversal of 973406731 is 137604379.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 973406731 - 2⁵ = 973406699 is a prime.

It is a super-2 number, since 2×973406731² = 1895041327912212722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (973406701) 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, 44245750 + ... + 44245771.

It is an arithmetic number, because the mean of its divisors is an integer number (265474566).

Almost surely, 2^973406731 is an apocalyptic number.

973406731 is a deficient number, since it is larger than the sum of its proper divisors (88491533).

973406731 is a wasteful number, since it uses less digits than its factorization.

973406731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88491532.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 973406731 is about 31199.4668383932. The cubic root of 973406731 is about 991.0558170990.

It can be divided in two parts, 973 and 406731, that added together give a palindrome (407704).

The spelling of 973406731 in words is "nine hundred seventy-three million, four hundred six thousand, seven hundred thirty-one".