3961026 has 12 divisors (see below), whose sum is σ = 8582262. Its totient is φ = 1320336.

The previous prime is 3961021. The next prime is 3961039. The reversal of 3961026 is 6201693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 1404225 = 1599^2 + 1185^2 .

It is not an unprimeable number, because it can be changed into a prime (3961021) 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, 110011 + ... + 110046.

Almost surely, 2^3961026 is an apocalyptic number.

3961026 is an abundant number, since it is smaller than the sum of its proper divisors (4621236).

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

3961026 is a wasteful number, since it uses less digits than its factorization.

3961026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220065 (or 220062 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3961026 is about 1990.2326497171. The cubic root of 3961026 is about 158.2228602111. Note that the first 3 decimals are identical.

The spelling of 3961026 in words is "three million, nine hundred sixty-one thousand, twenty-six".