973981479025 has 9 divisors (see below), whose sum is σ = 1207743152833. Its totient is φ = 779181235600.

The previous prime is 973981478983. The next prime is 973981479091. The reversal of 973981479025 is 520974189379.

The square root of 973981479025 is 986905.

It is a perfect power (a square), and thus also a powerful number.

973981479025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43327671409 + 930653807616 = 208153^2 + 964704^2 .

It is not a de Polignac number, because 973981479025 - 2¹¹ = 973981476977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4835835 + ... + 5033215.

Almost surely, 2^973981479025 is an apocalyptic number.

973981479025 is the 986905-th square number.

973981479025 is the 493453-rd centered octagonal number.

It is an amenable number.

973981479025 is a deficient number, since it is larger than the sum of its proper divisors (233761673808).

973981479025 is an frugal number, since it uses more digits than its factorization.

973981479025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394772 (or 197386 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 64.

Multiplying 973981479025 by its sum of digits (64), we get a square (62334814657600 = 7895240²).

The spelling of 973981479025 in words is "nine hundred seventy-three billion, nine hundred eighty-one million, four hundred seventy-nine thousand, twenty-five".