6978770 has 8 divisors (see below), whose sum is σ = 12561804. Its totient is φ = 2791504.

The previous prime is 6978761. The next prime is 6978779. The reversal of 6978770 is 778796.

It is an interprime number because it is at equal distance from previous prime (6978761) and next prime (6978779).

It can be written as a sum of positive squares in 2 ways, for example, as 6115729 + 863041 = 2473^2 + 929^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6978779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348929 + ... + 348948.

Almost surely, 2^6978770 is an apocalyptic number.

6978770 is a deficient number, since it is larger than the sum of its proper divisors (5583034).

6978770 is a wasteful number, since it uses less digits than its factorization.

6978770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697884.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 6978770 is about 2641.7361715357. The cubic root of 6978770 is about 191.0995342075.

The spelling of 6978770 in words is "six million, nine hundred seventy-eight thousand, seven hundred seventy".