3869811 has 12 divisors (see below), whose sum is σ = 6098040. Its totient is φ = 2345280.

The previous prime is 3869807. The next prime is 3869849. The reversal of 3869811 is 1189683.

It is not a de Polignac number, because 3869811 - 2² = 3869807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3869861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19446 + ... + 19643.

It is an arithmetic number, because the mean of its divisors is an integer number (508170).

Almost surely, 2^3869811 is an apocalyptic number.

3869811 is a deficient number, since it is larger than the sum of its proper divisors (2228229).

3869811 is a wasteful number, since it uses less digits than its factorization.

3869811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39106 (or 39103 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 3869811 is about 1967.1835196544. The cubic root of 3869811 is about 156.9988910898.

The spelling of 3869811 in words is "three million, eight hundred sixty-nine thousand, eight hundred eleven".