6274721 has 4 divisors (see below), whose sum is σ = 6284592. Its totient is φ = 6264852.

The previous prime is 6274703. The next prime is 6274729. The reversal of 6274721 is 1274726.

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 a de Polignac number, because none of the positive numbers 2^k-6274721 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6274729) 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, 3911 + ... + 5276.

It is an arithmetic number, because the mean of its divisors is an integer number (1571148).

Almost surely, 2^6274721 is an apocalyptic number.

It is an amenable number.

6274721 is a deficient number, since it is larger than the sum of its proper divisors (9871).

6274721 is an equidigital number, since it uses as much as digits as its factorization.

6274721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9870.

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

The square root of 6274721 is about 2504.9393206224. The cubic root of 6274721 is about 184.4441166131. Note that the first 3 decimals are identical.

The spelling of 6274721 in words is "six million, two hundred seventy-four thousand, seven hundred twenty-one".