3425021 has 2 divisors, whose sum is σ = 3425022. Its totient is φ = 3425020.

The previous prime is 3424991. The next prime is 3425027. The reversal of 3425021 is 1205243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3189796 + 235225 = 1786^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 3425021 - 2⁶ = 3424957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3425027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1712510 + 1712511.

It is an arithmetic number, because the mean of its divisors is an integer number (1712511).

Almost surely, 2^3425021 is an apocalyptic number.

It is an amenable number.

3425021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3425021 is an equidigital number, since it uses as much as digits as its factorization.

3425021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3425021 is about 1850.6812259274. The cubic root of 3425021 is about 150.7374206497.

The spelling of 3425021 in words is "three million, four hundred twenty-five thousand, twenty-one".