6922978 has 8 divisors (see below), whose sum is σ = 10995372. Its totient is φ = 3257856.

The previous prime is 6922969. The next prime is 6922999. The reversal of 6922978 is 8792296.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6880129 + 42849 = 2623^2 + 207^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101775 + ... + 101842.

Almost surely, 2^6922978 is an apocalyptic number.

6922978 is a deficient number, since it is larger than the sum of its proper divisors (4072394).

6922978 is a wasteful number, since it uses less digits than its factorization.

6922978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203636.

The product of its digits is 108864, while the sum is 43.

The square root of 6922978 is about 2631.1552595771. The cubic root of 6922978 is about 190.5889206285.

The spelling of 6922978 in words is "six million, nine hundred twenty-two thousand, nine hundred seventy-eight".