1956239 has 2 divisors, whose sum is σ = 1956240. Its totient is φ = 1956238.

The previous prime is 1956217. The next prime is 1956257. The reversal of 1956239 is 9326591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1956239 - 2⁸ = 1955983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1956199 and 1956208.

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, 978119 + 978120.

It is an arithmetic number, because the mean of its divisors is an integer number (978120).

2^1956239 is an apocalyptic number.

1956239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956239 is an equidigital number, since it uses as much as digits as its factorization.

1956239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 1956239 is about 1398.6561407294. The cubic root of 1956239 is about 125.0663967256.

The spelling of 1956239 in words is "one million, nine hundred fifty-six thousand, two hundred thirty-nine".