7226661 has 8 divisors (see below), whose sum is σ = 10376800. Its totient is φ = 4447152.

The previous prime is 7226641. The next prime is 7226663. The reversal of 7226661 is 1666227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7226661 - 2⁵ = 7226629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92611 + ... + 92688.

It is an arithmetic number, because the mean of its divisors is an integer number (1297100).

Almost surely, 2^7226661 is an apocalyptic number.

It is an amenable number.

7226661 is a deficient number, since it is larger than the sum of its proper divisors (3150139).

7226661 is a wasteful number, since it uses less digits than its factorization.

7226661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185315.

The product of its digits is 6048, while the sum is 30.

The square root of 7226661 is about 2688.2449665163. The cubic root of 7226661 is about 193.3359251205.

It can be divided in two parts, 72266 and 61, that added together give a palindrome (72327).

The spelling of 7226661 in words is "seven million, two hundred twenty-six thousand, six hundred sixty-one".