972424478 has 4 divisors (see below), whose sum is σ = 1458636720. Its totient is φ = 486212238.

The previous prime is 972424477. The next prime is 972424487. The reversal of 972424478 is 874424279.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972424477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243106118 + ... + 243106121.

It is an arithmetic number, because the mean of its divisors is an integer number (364659180).

Almost surely, 2^972424478 is an apocalyptic number.

972424478 is a deficient number, since it is larger than the sum of its proper divisors (486212242).

972424478 is a wasteful number, since it uses less digits than its factorization.

972424478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486212241.

The product of its digits is 903168, while the sum is 47.

The square root of 972424478 is about 31183.7213622749. The cubic root of 972424478 is about 990.7223507482.

The spelling of 972424478 in words is "nine hundred seventy-two million, four hundred twenty-four thousand, four hundred seventy-eight".