2147859 has 24 divisors (see below), whose sum is σ = 3590912. Its totient is φ = 1211760.

The previous prime is 2147843. The next prime is 2147861. The reversal of 2147859 is 9587412.

It is not a de Polignac number, because 2147859 - 2⁴ = 2147843 is a prime.

It is a super-2 number, since 2×2147859² = 9226596567762, which contains 22 as substring.

It is a Duffinian number.

2147859 is a lucky number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2147839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6324 + ... + 6654.

2^2147859 is an apocalyptic number.

2147859 is a deficient number, since it is larger than the sum of its proper divisors (1443053).

2147859 is a wasteful number, since it uses less digits than its factorization.

2147859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 444 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2147859 is about 1465.5575730759. The cubic root of 2147859 is about 129.0234318351.

The spelling of 2147859 in words is "two million, one hundred forty-seven thousand, eight hundred fifty-nine".