2719879 has 6 divisors (see below), whose sum is σ = 2786496. Its totient is φ = 2654820.

The previous prime is 2719811. The next prime is 2719883. The reversal of 2719879 is 9789172.

It is a happy number.

It is not a de Polignac number, because 2719879 - 2¹¹ = 2717831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2759879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (464416).

2^2719879 is an apocalyptic number.

2719879 is a deficient number, since it is larger than the sum of its proper divisors (66617).

2719879 is an equidigital number, since it uses as much as digits as its factorization.

2719879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1514 counting only the distinct ones).

The product of its digits is 63504, while the sum is 43.

The square root of 2719879 is about 1649.2055663258. The cubic root of 2719879 is about 139.5885709972.

The spelling of 2719879 in words is "two million, seven hundred nineteen thousand, eight hundred seventy-nine".