2617971 has 4 divisors (see below), whose sum is σ = 3490632. Its totient is φ = 1745312.

The previous prime is 2617961. The next prime is 2617987. The reversal of 2617971 is 1797162.

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

It is a cyclic number.

It is not a de Polignac number, because 2617971 - 2⁶ = 2617907 is a prime.

It is a D-number.

2617971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2617961) 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, 436326 + ... + 436331.

It is an arithmetic number, because the mean of its divisors is an integer number (872658).

2^2617971 is an apocalyptic number.

2617971 is a deficient number, since it is larger than the sum of its proper divisors (872661).

2617971 is an equidigital number, since it uses as much as digits as its factorization.

2617971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872660.

The product of its digits is 5292, while the sum is 33.

The square root of 2617971 is about 1618.0145240386. The cubic root of 2617971 is about 137.8229719111.

The spelling of 2617971 in words is "two million, six hundred seventeen thousand, nine hundred seventy-one".