3896643 has 8 divisors (see below), whose sum is σ = 5374800. Its totient is φ = 2508128.

The previous prime is 3896609. The next prime is 3896657. The reversal of 3896643 is 3466983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3896643 - 2¹⁴ = 3880259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3896443) by changing a digit.

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, 22308 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (671850).

Almost surely, 2^3896643 is an apocalyptic number.

3896643 is a deficient number, since it is larger than the sum of its proper divisors (1478157).

3896643 is a wasteful number, since it uses less digits than its factorization.

3896643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44821.

The product of its digits is 93312, while the sum is 39.

The square root of 3896643 is about 1973.9916413197. The cubic root of 3896643 is about 157.3609152584.

The spelling of 3896643 in words is "three million, eight hundred ninety-six thousand, six hundred forty-three".