1952865 has 12 divisors (see below), whose sum is σ = 3385044. Its totient is φ = 1041504.

The previous prime is 1952851. The next prime is 1952887. The reversal of 1952865 is 5682591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1306449 + 646416 = 1143^2 + 804^2 .

It is not a de Polignac number, because 1952865 - 2⁵ = 1952833 is a prime.

1952865 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21654 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (282087).

2^1952865 is an apocalyptic number.

1952865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1952865 is a deficient number, since it is larger than the sum of its proper divisors (1432179).

1952865 is a wasteful number, since it uses less digits than its factorization.

1952865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43408 (or 43405 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1952865 is about 1397.4494624136. The cubic root of 1952865 is about 124.9944530872.

The spelling of 1952865 in words is "one million, nine hundred fifty-two thousand, eight hundred sixty-five".