7221634 has 32 divisors (see below), whose sum is σ = 13806720. Its totient is φ = 2757888.

The previous prime is 7221631. The next prime is 7221649. The reversal of 7221634 is 4361227.

It is a junction number, because it is equal to n+sod(n) for n = 7221599 and 7221608.

It is not an unprimeable number, because it can be changed into a prime (7221631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3724 + ... + 5320.

It is an arithmetic number, because the mean of its divisors is an integer number (431460).

Almost surely, 2^7221634 is an apocalyptic number.

7221634 is a deficient number, since it is larger than the sum of its proper divisors (6585086).

7221634 is a wasteful number, since it uses less digits than its factorization.

7221634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642.

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

The square root of 7221634 is about 2687.3098072236. The cubic root of 7221634 is about 193.2910853649.

The spelling of 7221634 in words is "seven million, two hundred twenty-one thousand, six hundred thirty-four".