3983261 has 2 divisors, whose sum is σ = 3983262. Its totient is φ = 3983260.

The previous prime is 3983249. The next prime is 3983263. The reversal of 3983261 is 1623893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3976036 + 7225 = 1994^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 3983261 - 2⁶ = 3983197 is a prime.

Together with 3983263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3983263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1991630 + 1991631.

It is an arithmetic number, because the mean of its divisors is an integer number (1991631).

Almost surely, 2^3983261 is an apocalyptic number.

It is an amenable number.

3983261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3983261 is an equidigital number, since it uses as much as digits as its factorization.

3983261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 3983261 is about 1995.8108627823. The cubic root of 3983261 is about 158.5183663830.

It can be divided in two parts, 39832 and 61, that added together give a palindrome (39893).

The spelling of 3983261 in words is "three million, nine hundred eighty-three thousand, two hundred sixty-one".