8661494 has 8 divisors (see below), whose sum is σ = 13072440. Its totient is φ = 4304178.

The previous prime is 8661491. The next prime is 8661509. The reversal of 8661494 is 4941668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53057 + ... + 53219.

It is an arithmetic number, because the mean of its divisors is an integer number (1634055).

Almost surely, 2^8661494 is an apocalyptic number.

8661494 is a deficient number, since it is larger than the sum of its proper divisors (4410946).

8661494 is an frugal number, since it uses more digits than its factorization.

8661494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 165 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 8661494 is about 2943.0416238986. The cubic root of 8661494 is about 205.3671311329.

The spelling of 8661494 in words is "eight million, six hundred sixty-one thousand, four hundred ninety-four".