8401646 has 16 divisors (see below), whose sum is σ = 13793328. Its totient is φ = 3806400.

The previous prime is 8401639. The next prime is 8401661. The reversal of 8401646 is 6461048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11096 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (862083).

Almost surely, 2^8401646 is an apocalyptic number.

8401646 is a deficient number, since it is larger than the sum of its proper divisors (5391682).

8401646 is a wasteful number, since it uses less digits than its factorization.

8401646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 8401646 is about 2898.5592973062. The cubic root of 8401646 is about 203.2925481815.

The spelling of 8401646 in words is "eight million, four hundred one thousand, six hundred forty-six".