3932021 has 2 divisors, whose sum is σ = 3932022. Its totient is φ = 3932020.

The previous prime is 3932003. The next prime is 3932039. The reversal of 3932021 is 1202393.

It is a balanced prime because it is at equal distance from previous prime (3932003) and next prime (3932039).

It can be written as a sum of positive squares in only one way, i.e., 3783025 + 148996 = 1945^2 + 386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3932021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3931984 and 3932002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3932521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1966010 + 1966011.

It is an arithmetic number, because the mean of its divisors is an integer number (1966011).

Almost surely, 2^3932021 is an apocalyptic number.

It is an amenable number.

3932021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3932021 is an equidigital number, since it uses as much as digits as its factorization.

3932021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3932021 is about 1982.9324244664. The cubic root of 3932021 is about 157.8357129073.

The spelling of 3932021 in words is "three million, nine hundred thirty-two thousand, twenty-one".