3896691 has 16 divisors (see below), whose sum is σ = 5520000. Its totient is φ = 2438208.

The previous prime is 3896677. The next prime is 3896699. The reversal of 3896691 is 1966983.

It is not a de Polignac number, because 3896691 - 2¹⁰ = 3895667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3896699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7560 + ... + 8058.

It is an arithmetic number, because the mean of its divisors is an integer number (345000).

Almost surely, 2^3896691 is an apocalyptic number.

3896691 is a deficient number, since it is larger than the sum of its proper divisors (1623309).

3896691 is a wasteful number, since it uses less digits than its factorization.

3896691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its digits is 69984, while the sum is 42.

The square root of 3896691 is about 1974.0037993884. The cubic root of 3896691 is about 157.3615613951.

The spelling of 3896691 in words is "three million, eight hundred ninety-six thousand, six hundred ninety-one".