7634221 has 8 divisors (see below), whose sum is σ = 9025920. Its totient is φ = 6317808.

The previous prime is 7634203. The next prime is 7634243. The reversal of 7634221 is 1224367.

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

It is not a de Polignac number, because 7634221 - 2⁵ = 7634189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7634281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18601 + ... + 19006.

It is an arithmetic number, because the mean of its divisors is an integer number (1128240).

Almost surely, 2^7634221 is an apocalyptic number.

It is an amenable number.

7634221 is a deficient number, since it is larger than the sum of its proper divisors (1391699).

7634221 is a wasteful number, since it uses less digits than its factorization.

7634221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37643.

The product of its digits is 2016, while the sum is 25.

The square root of 7634221 is about 2763.0094100455. The cubic root of 7634221 is about 196.9041680476.

Adding to 7634221 its reverse (1224367), we get a palindrome (8858588).

The spelling of 7634221 in words is "seven million, six hundred thirty-four thousand, two hundred twenty-one".