2761257 has 4 divisors (see below), whose sum is σ = 3681680. Its totient is φ = 1840836.

The previous prime is 2761229. The next prime is 2761267. The reversal of 2761257 is 7521672.

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 not a de Polignac number, because 2761257 - 2⁶ = 2761193 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2761207) 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, 460207 + ... + 460212.

It is an arithmetic number, because the mean of its divisors is an integer number (920420).

2^2761257 is an apocalyptic number.

It is an amenable number.

2761257 is a deficient number, since it is larger than the sum of its proper divisors (920423).

2761257 is an equidigital number, since it uses as much as digits as its factorization.

2761257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920422.

The product of its digits is 5880, while the sum is 30.

The square root of 2761257 is about 1661.7030420626. The cubic root of 2761257 is about 140.2928732904.

The spelling of 2761257 in words is "two million, seven hundred sixty-one thousand, two hundred fifty-seven".