2761491 has 4 divisors (see below), whose sum is σ = 3681992. Its totient is φ = 1840992.

The previous prime is 2761489. The next prime is 2761501. The reversal of 2761491 is 1941672.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2761491 - 2¹ = 2761489 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 (2761411) 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, 460246 + ... + 460251.

It is an arithmetic number, because the mean of its divisors is an integer number (920498).

2^2761491 is an apocalyptic number.

2761491 is a deficient number, since it is larger than the sum of its proper divisors (920501).

2761491 is an equidigital number, since it uses as much as digits as its factorization.

2761491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920500.

The product of its digits is 3024, while the sum is 30.

The square root of 2761491 is about 1661.7734502633. The cubic root of 2761491 is about 140.2968361722.

The spelling of 2761491 in words is "two million, seven hundred sixty-one thousand, four hundred ninety-one".