1585965 has 16 divisors (see below), whose sum is σ = 2648448. Its totient is φ = 808896.

The previous prime is 1585963. The next prime is 1585967. The reversal of 1585965 is 5695851.

It is an interprime number because it is at equal distance from previous prime (1585963) and next prime (1585967).

It is not a de Polignac number, because 1585965 - 2¹ = 1585963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1585963) 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, 1954 + ... + 2643.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

2^1585965 is an apocalyptic number.

1585965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1585965 is a deficient number, since it is larger than the sum of its proper divisors (1062483).

1585965 is a wasteful number, since it uses less digits than its factorization.

1585965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628.

The product of its digits is 54000, while the sum is 39.

The square root of 1585965 is about 1259.3510233450. The cubic root of 1585965 is about 116.6177164261.

The spelling of 1585965 in words is "one million, five hundred eighty-five thousand, nine hundred sixty-five".