2471971 has 8 divisors (see below), whose sum is σ = 2663424. Its totient is φ = 2287560.

The previous prime is 2471951. The next prime is 2471983. The reversal of 2471971 is 1791742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2471971 - 2⁵ = 2471939 is a prime.

It is a super-2 number, since 2×2471971² = 12221281249682, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2471951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021 + ... + 2446.

It is an arithmetic number, because the mean of its divisors is an integer number (332928).

2^2471971 is an apocalyptic number.

2471971 is a deficient number, since it is larger than the sum of its proper divisors (191453).

2471971 is a wasteful number, since it uses less digits than its factorization.

2471971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 3528, while the sum is 31.

The square root of 2471971 is about 1572.2502981396. The cubic root of 2471971 is about 135.2117572901.

The spelling of 2471971 in words is "two million, four hundred seventy-one thousand, nine hundred seventy-one".