7221335 has 8 divisors (see below), whose sum is σ = 9453456. Its totient is φ = 5251840.

The previous prime is 7221307. The next prime is 7221353. The reversal of 7221335 is 5331227.

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

It is not a de Polignac number, because 7221335 - 2⁸ = 7221079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7221335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65594 + ... + 65703.

It is an arithmetic number, because the mean of its divisors is an integer number (1181682).

Almost surely, 2^7221335 is an apocalyptic number.

7221335 is a deficient number, since it is larger than the sum of its proper divisors (2232121).

7221335 is a wasteful number, since it uses less digits than its factorization.

7221335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131313.

The product of its digits is 1260, while the sum is 23.

The square root of 7221335 is about 2687.2541748037. The cubic root of 7221335 is about 193.2884176938.

The spelling of 7221335 in words is "seven million, two hundred twenty-one thousand, three hundred thirty-five".