3646836 has 24 divisors (see below), whose sum is σ = 9455040. Its totient is φ = 1215576.

The previous prime is 3646829. The next prime is 3646859. The reversal of 3646836 is 6386463.

3646836 is a `hidden beast` number, since 3 + 646 + 8 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3646836.

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 in 7 ways as a sum of consecutive naturals, for example, 16776 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (393960).

Almost surely, 2^3646836 is an apocalyptic number.

3646836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3646836 is an abundant number, since it is smaller than the sum of its proper divisors (5808204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3646836 is a wasteful number, since it uses less digits than its factorization.

3646836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33780 (or 33772 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 3646836 is about 1909.6690812808. The cubic root of 3646836 is about 153.9236705001.

The spelling of 3646836 in words is "three million, six hundred forty-six thousand, eight hundred thirty-six".