3923261 has 2 divisors, whose sum is σ = 3923262. Its totient is φ = 3923260.

The previous prime is 3923233. The next prime is 3923263. The reversal of 3923261 is 1623293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3667225 + 256036 = 1915^2 + 506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3923261 is a prime.

It is a Sophie Germain prime.

Together with 3923263, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3923261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3923263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961630 + 1961631.

It is an arithmetic number, because the mean of its divisors is an integer number (1961631).

Almost surely, 2^3923261 is an apocalyptic number.

It is an amenable number.

3923261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3923261 is an equidigital number, since it uses as much as digits as its factorization.

3923261 is an evil number, because the sum of its binary digits is even.

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

The square root of 3923261 is about 1980.7223429850. The cubic root of 3923261 is about 157.7184136953.

Subtracting from 3923261 its reverse (1623293), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 39232 and 61, that added together give a palindrome (39293).

The spelling of 3923261 in words is "three million, nine hundred twenty-three thousand, two hundred sixty-one".