3801691 has 6 divisors (see below), whose sum is σ = 4012692. Its totient is φ = 3601260.

The previous prime is 3801671. The next prime is 3801709. The reversal of 3801691 is 1961083.

It is a happy number.

It is not a de Polignac number, because 3801691 - 2⁹ = 3801179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3801631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4905 + ... + 5626.

It is an arithmetic number, because the mean of its divisors is an integer number (668782).

Almost surely, 2^3801691 is an apocalyptic number.

3801691 is a deficient number, since it is larger than the sum of its proper divisors (211001).

3801691 is a wasteful number, since it uses less digits than its factorization.

3801691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10569 (or 10550 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3801691 is about 1949.7925530681. The cubic root of 3801691 is about 156.0722189176.

The spelling of 3801691 in words is "three million, eight hundred one thousand, six hundred ninety-one".