972577867 has 4 divisors (see below), whose sum is σ = 972708400. Its totient is φ = 972447336.

The previous prime is 972577861. The next prime is 972577877. The reversal of 972577867 is 768775279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768775279 = 20599 ⋅37321.

It is a cyclic number.

It is not a de Polignac number, because 972577867 - 2²⁷ = 838360139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972577861) 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 3 ways as a sum of consecutive naturals, for example, 53367 + ... + 69232.

It is an arithmetic number, because the mean of its divisors is an integer number (243177100).

Almost surely, 2^972577867 is an apocalyptic number.

972577867 is a deficient number, since it is larger than the sum of its proper divisors (130533).

972577867 is a wasteful number, since it uses less digits than its factorization.

972577867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130532.

The product of its digits is 10372320, while the sum is 58.

The square root of 972577867 is about 31186.1807055625. The cubic root of 972577867 is about 990.7744397706.

The spelling of 972577867 in words is "nine hundred seventy-two million, five hundred seventy-seven thousand, eight hundred sixty-seven".