972878279 has 2 divisors, whose sum is σ = 972878280. Its totient is φ = 972878278.

The previous prime is 972878273. The next prime is 972878297.

972878279 is nontrivially palindromic in base 10.

Together with next prime (972878297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972878279 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972878273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486439139 + 486439140.

It is an arithmetic number, because the mean of its divisors is an integer number (486439140).

Almost surely, 2^972878279 is an apocalyptic number.

972878279 is a deficient number, since it is larger than the sum of its proper divisors (1).

972878279 is an equidigital number, since it uses as much as digits as its factorization.

972878279 is an evil number, because the sum of its binary digits is even.

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

The square root of 972878279 is about 31190.9967618863. The cubic root of 972878279 is about 990.8764401351.

The spelling of 972878279 in words is "nine hundred seventy-two million, eight hundred seventy-eight thousand, two hundred seventy-nine".