7221802 has 8 divisors (see below), whose sum is σ = 12380256. Its totient is φ = 3095052.

The previous prime is 7221779. The next prime is 7221811. The reversal of 7221802 is 2081227.

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

It is an Ulam number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 257908 + ... + 257935.

It is an arithmetic number, because the mean of its divisors is an integer number (1547532).

Almost surely, 2^7221802 is an apocalyptic number.

7221802 is a deficient number, since it is larger than the sum of its proper divisors (5158454).

7221802 is a wasteful number, since it uses less digits than its factorization.

7221802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515852.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7221802 is about 2687.3410650678. The cubic root of 7221802 is about 193.2925842247.

The spelling of 7221802 in words is "seven million, two hundred twenty-one thousand, eight hundred two".