973539878 has 4 divisors (see below), whose sum is σ = 1460309820. Its totient is φ = 486769938.

The previous prime is 973539877. The next prime is 973539907. The reversal of 973539878 is 878935379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878935379 = 7 ⋅125562197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (973539871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243384968 + ... + 243384971.

It is an arithmetic number, because the mean of its divisors is an integer number (365077455).

Almost surely, 2^973539878 is an apocalyptic number.

973539878 is a deficient number, since it is larger than the sum of its proper divisors (486769942).

973539878 is a wasteful number, since it uses less digits than its factorization.

973539878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486769941.

The product of its digits is 11430720, while the sum is 59.

The square root of 973539878 is about 31201.6005679196. The cubic root of 973539878 is about 991.1010020796.

The spelling of 973539878 in words is "nine hundred seventy-three million, five hundred thirty-nine thousand, eight hundred seventy-eight".