2471939 has 2 divisors, whose sum is σ = 2471940. Its totient is φ = 2471938.

The previous prime is 2471927. The next prime is 2471947. The reversal of 2471939 is 9391742.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2471939 is a prime.

It is a super-2 number, since 2×2471939² = 12220964839442, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2471899 and 2471908.

It is not a weakly prime, because it can be changed into another prime (2471639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235969 + 1235970.

It is an arithmetic number, because the mean of its divisors is an integer number (1235970).

2^2471939 is an apocalyptic number.

2471939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2471939 is an equidigital number, since it uses as much as digits as its factorization.

2471939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 2471939 is about 1572.2401216099. The cubic root of 2471939 is about 135.2111738428.

The spelling of 2471939 in words is "two million, four hundred seventy-one thousand, nine hundred thirty-nine".