2729917 has 2 divisors, whose sum is σ = 2729918. Its totient is φ = 2729916.

The previous prime is 2729887. The next prime is 2729921. The reversal of 2729917 is 7199272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819801 + 910116 = 1349^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 2729917 - 2¹⁹ = 2205629 is a prime.

It is a Chen prime.

2729917 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2729957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364958 + 1364959.

It is an arithmetic number, because the mean of its divisors is an integer number (1364959).

2^2729917 is an apocalyptic number.

It is an amenable number.

2729917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2729917 is an equidigital number, since it uses as much as digits as its factorization.

2729917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 37.

The square root of 2729917 is about 1652.2460470523. The cubic root of 2729917 is about 139.7600822856.

The spelling of 2729917 in words is "two million, seven hundred twenty-nine thousand, nine hundred seventeen".