7221946 has 8 divisors (see below), whose sum is σ = 11182464. Its totient is φ = 3494460.

The previous prime is 7221937. The next prime is 7221953. The reversal of 7221946 is 6491227.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 58180 + ... + 58303.

It is an arithmetic number, because the mean of its divisors is an integer number (1397808).

Almost surely, 2^7221946 is an apocalyptic number.

7221946 is a deficient number, since it is larger than the sum of its proper divisors (3960518).

7221946 is a wasteful number, since it uses less digits than its factorization.

7221946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116516.

The product of its digits is 6048, while the sum is 31.

The square root of 7221946 is about 2687.3678572164. The cubic root of 7221946 is about 193.2938689431.

The spelling of 7221946 in words is "seven million, two hundred twenty-one thousand, nine hundred forty-six".