972967393 has 4 divisors (see below), whose sum is σ = 973396228. Its totient is φ = 972538560.

The previous prime is 972967379. The next prime is 972967421. The reversal of 972967393 is 393769279.

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

It can be written as a sum of positive squares in 2 ways, for example, as 852231249 + 120736144 = 29193^2 + 10988^2 .

It is a cyclic number.

It is not a de Polignac number, because 972967393 - 2⁵ = 972967361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972967343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210996 + ... + 215557.

It is an arithmetic number, because the mean of its divisors is an integer number (243349057).

Almost surely, 2^972967393 is an apocalyptic number.

It is an amenable number.

972967393 is a deficient number, since it is larger than the sum of its proper divisors (428835).

972967393 is a wasteful number, since it uses less digits than its factorization.

972967393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428834.

The product of its digits is 3857868, while the sum is 55.

The square root of 972967393 is about 31192.4252503713. The cubic root of 972967393 is about 990.9066934118.

The spelling of 972967393 in words is "nine hundred seventy-two million, nine hundred sixty-seven thousand, three hundred ninety-three".