2720117 has 2 divisors, whose sum is σ = 2720118. Its totient is φ = 2720116.

The previous prime is 2720101. The next prime is 2720147. The reversal of 2720117 is 7110272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 894916 = 1351^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720117 - 2⁴ = 2720101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360058 + 1360059.

It is an arithmetic number, because the mean of its divisors is an integer number (1360059).

2^2720117 is an apocalyptic number.

It is an amenable number.

2720117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720117 is an equidigital number, since it uses as much as digits as its factorization.

2720117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 2720117 is about 1649.2777207008. The cubic root of 2720117 is about 139.5926423929.

Adding to 2720117 its reverse (7110272), we get a palindrome (9830389).

The spelling of 2720117 in words is "two million, seven hundred twenty thousand, one hundred seventeen".