7219898 has 16 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 2987376.

The previous prime is 7219879. The next prime is 7219903. The reversal of 7219898 is 8989127.

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 7 ways as a sum of consecutive naturals, for example, 8486 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^7219898 is an apocalyptic number.

7219898 is a deficient number, since it is larger than the sum of its proper divisors (5584582).

7219898 is a wasteful number, since it uses less digits than its factorization.

7219898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17821.

The product of its digits is 72576, while the sum is 44.

The square root of 7219898 is about 2686.9867882072. The cubic root of 7219898 is about 193.2755957857.

The spelling of 7219898 in words is "seven million, two hundred nineteen thousand, eight hundred ninety-eight".