6862978 has 4 divisors (see below), whose sum is σ = 10294470. Its totient is φ = 3431488.

The previous prime is 6862969. The next prime is 6862979. The reversal of 6862978 is 8792686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6487209 + 375769 = 2547^2 + 613^2 .

It is not an unprimeable number, because it can be changed into a prime (6862979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715743 + ... + 1715746.

Almost surely, 2^6862978 is an apocalyptic number.

6862978 is a deficient number, since it is larger than the sum of its proper divisors (3431492).

6862978 is a wasteful number, since it uses less digits than its factorization.

6862978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431491.

The product of its digits is 290304, while the sum is 46.

The square root of 6862978 is about 2619.7286118986. The cubic root of 6862978 is about 190.0367242032.

The spelling of 6862978 in words is "six million, eight hundred sixty-two thousand, nine hundred seventy-eight".