1972471 has 2 divisors, whose sum is σ = 1972472. Its totient is φ = 1972470.

The previous prime is 1972441. The next prime is 1972483. The reversal of 1972471 is 1742791.

It is a strong prime.

It is an emirp because it is prime and its reverse (1742791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1972471 - 2⁷ = 1972343 is a prime.

It is a super-3 number, since 3×1972471³ = 23022534636923529333, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1972441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986235 + 986236.

It is an arithmetic number, because the mean of its divisors is an integer number (986236).

2^1972471 is an apocalyptic number.

1972471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972471 is an equidigital number, since it uses as much as digits as its factorization.

1972471 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1972471 is about 1404.4468662075. The cubic root of 1972471 is about 125.4113594489.

The spelling of 1972471 in words is "one million, nine hundred seventy-two thousand, four hundred seventy-one".