1982471 has 2 divisors, whose sum is σ = 1982472. Its totient is φ = 1982470.

The previous prime is 1982467. The next prime is 1982501. The reversal of 1982471 is 1742891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982471 - 2² = 1982467 is a prime.

It is a super-3 number, since 3×1982471³ = 23374470626949219333, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991235 + 991236.

It is an arithmetic number, because the mean of its divisors is an integer number (991236).

2^1982471 is an apocalyptic number.

1982471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982471 is an equidigital number, since it uses as much as digits as its factorization.

1982471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 32.

The square root of 1982471 is about 1408.0024857933. The cubic root of 1982471 is about 125.6229384248.

The spelling of 1982471 in words is "one million, nine hundred eighty-two thousand, four hundred seventy-one".