972789827 has 8 divisors (see below), whose sum is σ = 1063239552. Its totient is φ = 886032000.

The previous prime is 972789823. The next prime is 972789841. The reversal of 972789827 is 728987279.

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 972789827 - 2² = 972789823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972789823) 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, 922424 + ... + 923477.

It is an arithmetic number, because the mean of its divisors is an integer number (132904944).

Almost surely, 2^972789827 is an apocalyptic number.

972789827 is a deficient number, since it is larger than the sum of its proper divisors (90449725).

972789827 is a wasteful number, since it uses less digits than its factorization.

972789827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845949.

The product of its digits is 7112448, while the sum is 59.

The square root of 972789827 is about 31189.5788204971. The cubic root of 972789827 is about 990.8464097736.

The spelling of 972789827 in words is "nine hundred seventy-two million, seven hundred eighty-nine thousand, eight hundred twenty-seven".