3806538 has 32 divisors (see below), whose sum is σ = 8195904. Its totient is φ = 1174272.

The previous prime is 3806527. The next prime is 3806549. The reversal of 3806538 is 8356083.

It is an interprime number because it is at equal distance from previous prime (3806527) and next prime (3806549).

It is a junction number, because it is equal to n+sod(n) for n = 3806499 and 3806508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6556 + ... + 7112.

It is an arithmetic number, because the mean of its divisors is an integer number (256122).

Almost surely, 2^3806538 is an apocalyptic number.

3806538 is an abundant number, since it is smaller than the sum of its proper divisors (4389366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3806538 is a wasteful number, since it uses less digits than its factorization.

3806538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3806538 is about 1951.0351098840. The cubic root of 3806538 is about 156.1385193067.

The spelling of 3806538 in words is "three million, eight hundred six thousand, five hundred thirty-eight".