2660719 has 2 divisors, whose sum is σ = 2660720. Its totient is φ = 2660718.

The previous prime is 2660659. The next prime is 2660737. The reversal of 2660719 is 9170662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660719 - 2⁷ = 2660591 is a prime.

It is a super-2 number, since 2×2660719² = 14158851193922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330359 + 1330360.

It is an arithmetic number, because the mean of its divisors is an integer number (1330360).

2^2660719 is an apocalyptic number.

2660719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660719 is an equidigital number, since it uses as much as digits as its factorization.

2660719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2660719 is about 1631.1710517294. The cubic root of 2660719 is about 138.5690810832.

The spelling of 2660719 in words is "two million, six hundred sixty thousand, seven hundred nineteen".