3906026 has 4 divisors (see below), whose sum is σ = 5859042. Its totient is φ = 1953012.

The previous prime is 3906017. The next prime is 3906043. The reversal of 3906026 is 6206093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6206093 = 353 ⋅17581.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 1100401 = 1675^2 + 1049^2 .

It is a super-2 number, since 2×3906026² = 30514078225352, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3905986 and 3906004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976505 + ... + 976508.

Almost surely, 2^3906026 is an apocalyptic number.

3906026 is a deficient number, since it is larger than the sum of its proper divisors (1953016).

3906026 is a wasteful number, since it uses less digits than its factorization.

3906026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953015.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 3906026 is about 1976.3668687772. The cubic root of 3906026 is about 157.4871208080.

The spelling of 3906026 in words is "three million, nine hundred six thousand, twenty-six".