2662678 has 4 divisors (see below), whose sum is σ = 3994020. Its totient is φ = 1331338.

The previous prime is 2662669. The next prime is 2662697. The reversal of 2662678 is 8762662.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665668 + ... + 665671.

It is an arithmetic number, because the mean of its divisors is an integer number (998505).

2^2662678 is an apocalyptic number.

2662678 is a deficient number, since it is larger than the sum of its proper divisors (1331342).

2662678 is a wasteful number, since it uses less digits than its factorization.

2662678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331341.

The product of its digits is 48384, while the sum is 37.

The square root of 2662678 is about 1631.7714300722. The cubic root of 2662678 is about 138.6030806945.

The spelling of 2662678 in words is "two million, six hundred sixty-two thousand, six hundred seventy-eight".