6978705 has 32 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 3521280.

The previous prime is 6978703. The next prime is 6978707. The reversal of 6978705 is 5078796.

6978705 = T₈₆ + T₈₇ + ... + T₃₄₈.

It is an interprime number because it is at equal distance from previous prime (6978703) and next prime (6978707).

It is not a de Polignac number, because 6978705 - 2¹ = 6978703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6978703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26404 + ... + 26666.

It is an arithmetic number, because the mean of its divisors is an integer number (368280).

Almost surely, 2^6978705 is an apocalyptic number.

It is an amenable number.

6978705 is a deficient number, since it is larger than the sum of its proper divisors (4806255).

6978705 is a wasteful number, since it uses less digits than its factorization.

6978705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 6978705 is about 2641.7238689916. The cubic root of 6978705 is about 191.0989409077.

The spelling of 6978705 in words is "six million, nine hundred seventy-eight thousand, seven hundred five".