7221734 has 16 divisors (see below), whose sum is σ = 11982768. Its totient is φ = 3242592.

The previous prime is 7221733. The next prime is 7221737. The reversal of 7221734 is 4371227.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2792 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (748923).

Almost surely, 2^7221734 is an apocalyptic number.

7221734 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7221734 is a deficient number, since it is larger than the sum of its proper divisors (4761034).

7221734 is a wasteful number, since it uses less digits than its factorization.

7221734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7559.

The product of its digits is 2352, while the sum is 26.

The square root of 7221734 is about 2687.3284131271. The cubic root of 7221734 is about 193.2919775461.

The spelling of 7221734 in words is "seven million, two hundred twenty-one thousand, seven hundred thirty-four".