8149646 has 4 divisors (see below), whose sum is σ = 12224472. Its totient is φ = 4074822.

The previous prime is 8149639. The next prime is 8149663. The reversal of 8149646 is 6469418.

8149646 is nontrivially palindromic in base 7.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2037410 + ... + 2037413.

It is an arithmetic number, because the mean of its divisors is an integer number (3056118).

Almost surely, 2^8149646 is an apocalyptic number.

8149646 is a deficient number, since it is larger than the sum of its proper divisors (4074826).

8149646 is a wasteful number, since it uses less digits than its factorization.

8149646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074825.

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

The square root of 8149646 is about 2854.7584836550. The cubic root of 8149646 is about 201.2393541428.

The spelling of 8149646 in words is "eight million, one hundred forty-nine thousand, six hundred forty-six".