2742919 has 2 divisors, whose sum is σ = 2742920. Its totient is φ = 2742918.

The previous prime is 2742917. The next prime is 2742931. The reversal of 2742919 is 9192472.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2742919 - 2¹ = 2742917 is a prime.

It is a super-2 number, since 2×2742919² = 15047209281122, which contains 22 as substring.

Together with 2742917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2742917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371459 + 1371460.

It is an arithmetic number, because the mean of its divisors is an integer number (1371460).

2^2742919 is an apocalyptic number.

2742919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742919 is an equidigital number, since it uses as much as digits as its factorization.

2742919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 2742919 is about 1656.1760172156. The cubic root of 2742919 is about 139.9816132316.

The spelling of 2742919 in words is "two million, seven hundred forty-two thousand, nine hundred nineteen".