1956885 has 16 divisors (see below), whose sum is σ = 3578496. Its totient is φ = 894528.

The previous prime is 1956883. The next prime is 1956901. The reversal of 1956885 is 5886591.

It is not a de Polignac number, because 1956885 - 2¹ = 1956883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9214 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (223656).

2^1956885 is an apocalyptic number.

1956885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1956885 is a deficient number, since it is larger than the sum of its proper divisors (1621611).

1956885 is a wasteful number, since it uses less digits than its factorization.

1956885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18652.

The product of its digits is 86400, while the sum is 42.

The square root of 1956885 is about 1398.8870576283. The cubic root of 1956885 is about 125.0801619149.

The spelling of 1956885 in words is "one million, nine hundred fifty-six thousand, eight hundred eighty-five".