6978972 has 144 divisors (see below), whose sum is σ = 22522752. Its totient is φ = 1653120.

The previous prime is 6978941. The next prime is 6978973. The reversal of 6978972 is 2798796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84043 + ... + 84125.

It is an arithmetic number, because the mean of its divisors is an integer number (156408).

Almost surely, 2^6978972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6978972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11261376).

6978972 is an abundant number, since it is smaller than the sum of its proper divisors (15543780).

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

6978972 is a wasteful number, since it uses less digits than its factorization.

6978972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 119 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 6978972 is about 2641.7744036916. The cubic root of 6978972 is about 191.1013779772.

It can be divided in two parts, 697 and 8972, that added together give a palindrome (9669).

The spelling of 6978972 in words is "six million, nine hundred seventy-eight thousand, nine hundred seventy-two".