972391043 has 16 divisors (see below), whose sum is σ = 1110203136. Its totient is φ = 845147520.

The previous prime is 972391039. The next prime is 972391051. The reversal of 972391043 is 340193279.

972391043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 972391043 - 2² = 972391039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972390988 and 972391006.

It is not an unprimeable number, because it can be changed into a prime (972391003) 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, 17696 + ... + 47517.

It is an arithmetic number, because the mean of its divisors is an integer number (69387696).

Almost surely, 2^972391043 is an apocalyptic number.

972391043 is a deficient number, since it is larger than the sum of its proper divisors (137812093).

972391043 is a wasteful number, since it uses less digits than its factorization.

972391043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65294.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 972391043 is about 31183.1852606497. The cubic root of 972391043 is about 990.7109959054.

The spelling of 972391043 in words is "nine hundred seventy-two million, three hundred ninety-one thousand, forty-three".