1956287 has 2 divisors, whose sum is σ = 1956288. Its totient is φ = 1956286.

The previous prime is 1956257. The next prime is 1956289. The reversal of 1956287 is 7826591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1956287 - 2¹² = 1952191 is a prime.

Together with 1956289, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1956287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1956289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978143 + 978144.

It is an arithmetic number, because the mean of its divisors is an integer number (978144).

2^1956287 is an apocalyptic number.

1956287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956287 is an equidigital number, since it uses as much as digits as its factorization.

1956287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 1956287 is about 1398.6732999525. The cubic root of 1956287 is about 125.0674196302.

It can be divided in two parts, 19 and 56287, that multiplied together give a triangular number (1069453 = T₁₄₆₂).

The spelling of 1956287 in words is "one million, nine hundred fifty-six thousand, two hundred eighty-seven".