3420493 has 2 divisors, whose sum is σ = 3420494. Its totient is φ = 3420492.

The previous prime is 3420481. The next prime is 3420497. The reversal of 3420493 is 3940243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2883204 + 537289 = 1698^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420493 - 2¹³ = 3412301 is a prime.

3420493 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710246 + 1710247.

It is an arithmetic number, because the mean of its divisors is an integer number (1710247).

Almost surely, 2^3420493 is an apocalyptic number.

It is an amenable number.

3420493 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420493 is an equidigital number, since it uses as much as digits as its factorization.

3420493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 3420493 is about 1849.4574880218. The cubic root of 3420493 is about 150.6709646053.

The spelling of 3420493 in words is "three million, four hundred twenty thousand, four hundred ninety-three".