7220858 has 8 divisors (see below), whose sum is σ = 10993152. Its totient is φ = 3556476.

The previous prime is 7220849. The next prime is 7220867. The reversal of 7220858 is 8580227.

It is an interprime number because it is at equal distance from previous prime (7220849) and next prime (7220867).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26810 + ... + 27077.

It is an arithmetic number, because the mean of its divisors is an integer number (1374144).

Almost surely, 2^7220858 is an apocalyptic number.

7220858 is a deficient number, since it is larger than the sum of its proper divisors (3772294).

7220858 is a wasteful number, since it uses less digits than its factorization.

7220858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53956.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 7220858 is about 2687.1654210338. The cubic root of 7220858 is about 193.2841617584.

The spelling of 7220858 in words is "seven million, two hundred twenty thousand, eight hundred fifty-eight".