2871629 has 2 divisors, whose sum is σ = 2871630. Its totient is φ = 2871628.

The previous prime is 2871613. The next prime is 2871643. The reversal of 2871629 is 9261782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 769129 = 1450^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 2871629 - 2⁴ = 2871613 is a prime.

It is a super-2 number, since 2×2871629² = 16492506227282, which contains 22 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 (2871689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435814 + 1435815.

It is an arithmetic number, because the mean of its divisors is an integer number (1435815).

2^2871629 is an apocalyptic number.

It is an amenable number.

2871629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871629 is an equidigital number, since it uses as much as digits as its factorization.

2871629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 2871629 is about 1694.5881505546. The cubic root of 2871629 is about 142.1377523265.

The spelling of 2871629 in words is "two million, eight hundred seventy-one thousand, six hundred twenty-nine".