3431287 has 2 divisors, whose sum is σ = 3431288. Its totient is φ = 3431286.

The previous prime is 3431261. The next prime is 3431317. The reversal of 3431287 is 7821343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3431287 - 2¹⁹ = 2906999 is a prime.

It is a Chen prime.

3431287 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3431237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715643 + 1715644.

It is an arithmetic number, because the mean of its divisors is an integer number (1715644).

Almost surely, 2^3431287 is an apocalyptic number.

3431287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431287 is an equidigital number, since it uses as much as digits as its factorization.

3431287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 3431287 is about 1852.3733424988. The cubic root of 3431287 is about 150.8292882391.

The spelling of 3431287 in words is "three million, four hundred thirty-one thousand, two hundred eighty-seven".