972086887 has 4 divisors (see below), whose sum is σ = 977517720. Its totient is φ = 966656056.

The previous prime is 972086839. The next prime is 972086893. The reversal of 972086887 is 788680279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788680279 = 359 ⋅2196881.

It is a cyclic number.

It is not a de Polignac number, because 972086887 - 2¹⁵ = 972054119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972086807) 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, 2715148 + ... + 2715505.

It is an arithmetic number, because the mean of its divisors is an integer number (244379430).

Almost surely, 2^972086887 is an apocalyptic number.

972086887 is a deficient number, since it is larger than the sum of its proper divisors (5430833).

972086887 is a wasteful number, since it uses less digits than its factorization.

972086887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430832.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 972086887 is about 31178.3079560133. The cubic root of 972086887 is about 990.6076896895.

The spelling of 972086887 in words is "nine hundred seventy-two million, eighty-six thousand, eight hundred eighty-seven".