972378 has 32 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 294480.

The previous prime is 972373. The next prime is 972403. The reversal of 972378 is 873279.

It is not an unprimeable number, because it can be changed into a prime (972373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2⁹⁷²³⁷⁸ is an apocalyptic number.

972378 is an abundant number, since it is smaller than the sum of its proper divisors (1386342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

972378 is a wasteful number, since it uses less digits than its factorization.

972378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1653 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 972378 is about 986.0922877703. The cubic root of 972378 is about 99.0706566308.

Subtracting from 972378 its reverse (873279), we obtain a palindrome (99099).

It can be divided in two parts, 9723 and 78, that added together give a square (9801 = 99²).

The spelling of 972378 in words is "nine hundred seventy-two thousand, three hundred seventy-eight".