2742657 has 4 divisors (see below), whose sum is σ = 3656880. Its totient is φ = 1828436.

The previous prime is 2742653. The next prime is 2742667. The reversal of 2742657 is 7562472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2742657 - 2² = 2742653 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7³ + 4³ + 2²¹ + 6² + 5⁵ + 7⁶ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2742653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457107 + ... + 457112.

It is an arithmetic number, because the mean of its divisors is an integer number (914220).

2^2742657 is an apocalyptic number.

It is an amenable number.

2742657 is a deficient number, since it is larger than the sum of its proper divisors (914223).

2742657 is an equidigital number, since it uses as much as digits as its factorization.

2742657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914222.

The product of its digits is 23520, while the sum is 33.

The square root of 2742657 is about 1656.0969174538. The cubic root of 2742657 is about 139.9771561367.

The spelling of 2742657 in words is "two million, seven hundred forty-two thousand, six hundred fifty-seven".