3902641 has 2 divisors, whose sum is σ = 3902642. Its totient is φ = 3902640.

The previous prime is 3902609. The next prime is 3902651. The reversal of 3902641 is 1462093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 1147041 = 1660^2 + 1071^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902641 - 2⁵ = 3902609 is a prime.

It is not a weakly prime, because it can be changed into another prime (3902651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951320 + 1951321.

It is an arithmetic number, because the mean of its divisors is an integer number (1951321).

Almost surely, 2^3902641 is an apocalyptic number.

It is an amenable number.

3902641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3902641 is an equidigital number, since it uses as much as digits as its factorization.

3902641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3902641 is about 1975.5103138177. The cubic root of 3902641 is about 157.4416143714.

The spelling of 3902641 in words is "three million, nine hundred two thousand, six hundred forty-one".