6978542 has 8 divisors (see below), whose sum is σ = 10485936. Its totient is φ = 3483232.

The previous prime is 6978511. The next prime is 6978547. The reversal of 6978542 is 2458796.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6978542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403 + ... + 3990.

It is an arithmetic number, because the mean of its divisors is an integer number (1310742).

Almost surely, 2^6978542 is an apocalyptic number.

6978542 is a deficient number, since it is larger than the sum of its proper divisors (3507394).

6978542 is a wasteful number, since it uses less digits than its factorization.

6978542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042.

The product of its digits is 120960, while the sum is 41.

The square root of 6978542 is about 2641.6930177445. The cubic root of 6978542 is about 191.0974530782.

The spelling of 6978542 in words is "six million, nine hundred seventy-eight thousand, five hundred forty-two".