2471869 has 2 divisors, whose sum is σ = 2471870. Its totient is φ = 2471868.

The previous prime is 2471863. The next prime is 2471899. The reversal of 2471869 is 9681742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2442969 + 28900 = 1563^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2471869 - 2¹⁷ = 2340797 is a prime.

It is a super-2 number, since 2×2471869² = 12220272706322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2471863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235934 + 1235935.

It is an arithmetic number, because the mean of its divisors is an integer number (1235935).

2^2471869 is an apocalyptic number.

It is an amenable number.

2471869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2471869 is an equidigital number, since it uses as much as digits as its factorization.

2471869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 2471869 is about 1572.2178602217. The cubic root of 2471869 is about 135.2098975341.

It can be divided in two parts, 247 and 1869, that added together give a square (2116 = 46²).

The spelling of 2471869 in words is "two million, four hundred seventy-one thousand, eight hundred sixty-nine".