1612871 has 4 divisors (see below), whose sum is σ = 1736952. Its totient is φ = 1488792.

The previous prime is 1612859. The next prime is 1612903. The reversal of 1612871 is 1782161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1612871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1612871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62021 + ... + 62046.

It is an arithmetic number, because the mean of its divisors is an integer number (434238).

2^1612871 is an apocalyptic number.

1612871 is a deficient number, since it is larger than the sum of its proper divisors (124081).

1612871 is a wasteful number, since it uses less digits than its factorization.

1612871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124080.

The product of its digits is 672, while the sum is 26.

The square root of 1612871 is about 1269.9885826258. The cubic root of 1612871 is about 117.2734975630.

The spelling of 1612871 in words is "one million, six hundred twelve thousand, eight hundred seventy-one".