2674721 has 4 divisors (see below), whose sum is σ = 3056832. Its totient is φ = 2292612.

The previous prime is 2674691. The next prime is 2674733. The reversal of 2674721 is 1274762.

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 de Polignac number, because none of the positive numbers 2^k-2674721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2674121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191045 + ... + 191058.

It is an arithmetic number, because the mean of its divisors is an integer number (764208).

2^2674721 is an apocalyptic number.

It is an amenable number.

2674721 is a deficient number, since it is larger than the sum of its proper divisors (382111).

2674721 is an equidigital number, since it uses as much as digits as its factorization.

2674721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382110.

The product of its digits is 4704, while the sum is 29.

The square root of 2674721 is about 1635.4574283668. The cubic root of 2674721 is about 138.8117286138.

It can be divided in two parts, 26 and 74721, that added together give a palindrome (74747).

The spelling of 2674721 in words is "two million, six hundred seventy-four thousand, seven hundred twenty-one".