3801806 has 4 divisors (see below), whose sum is σ = 5702712. Its totient is φ = 1900902.

The previous prime is 3801803. The next prime is 3801827. The reversal of 3801806 is 6081083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6081083 = 19 ⋅320057.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3801803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950450 + ... + 950453.

It is an arithmetic number, because the mean of its divisors is an integer number (1425678).

Almost surely, 2^3801806 is an apocalyptic number.

3801806 is a deficient number, since it is larger than the sum of its proper divisors (1900906).

3801806 is a wasteful number, since it uses less digits than its factorization.

3801806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900905.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 3801806 is about 1949.8220431619. The cubic root of 3801806 is about 156.0737926142.

Adding to 3801806 its reverse (6081083), we get a palindrome (9882889).

The spelling of 3801806 in words is "three million, eight hundred one thousand, eight hundred six".