8261668 has 6 divisors (see below), whose sum is σ = 14457926. Its totient is φ = 4130832.

The previous prime is 8261653. The next prime is 8261689. The reversal of 8261668 is 8661628.

It can be written as a sum of positive squares in only one way, i.e., 7225344 + 1036324 = 2688^2 + 1018^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032705 + ... + 1032712.

Almost surely, 2^8261668 is an apocalyptic number.

It is an amenable number.

8261668 is a deficient number, since it is larger than the sum of its proper divisors (6196258).

8261668 is a wasteful number, since it uses less digits than its factorization.

8261668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065421 (or 2065419 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 8261668 is about 2874.3117437049. The cubic root of 8261668 is about 202.1572151248.

The spelling of 8261668 in words is "eight million, two hundred sixty-one thousand, six hundred sixty-eight".