972955861 has 8 divisors (see below), whose sum is σ = 979655040. Its totient is φ = 966267408.

The previous prime is 972955831. The next prime is 972955873. The reversal of 972955861 is 168559279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 972955861 - 2⁹ = 972955349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972955799 and 972955808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972955831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271600 + ... + 275158.

It is an arithmetic number, because the mean of its divisors is an integer number (122456880).

Almost surely, 2^972955861 is an apocalyptic number.

It is an amenable number.

972955861 is a deficient number, since it is larger than the sum of its proper divisors (6699179).

972955861 is a wasteful number, since it uses less digits than its factorization.

972955861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363.

The product of its digits is 1360800, while the sum is 52.

The square root of 972955861 is about 31192.2403972526. The cubic root of 972955861 is about 990.9027785217.

The spelling of 972955861 in words is "nine hundred seventy-two million, nine hundred fifty-five thousand, eight hundred sixty-one".