8722198 has 8 divisors (see below), whose sum is σ = 13652208. Its totient is φ = 4171464.

The previous prime is 8722193. The next prime is 8722211. The reversal of 8722198 is 8912278.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94761 + ... + 94852.

It is an arithmetic number, because the mean of its divisors is an integer number (1706526).

Almost surely, 2^8722198 is an apocalyptic number.

8722198 is a deficient number, since it is larger than the sum of its proper divisors (4930010).

8722198 is a wasteful number, since it uses less digits than its factorization.

8722198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189638.

The product of its digits is 16128, while the sum is 37.

The square root of 8722198 is about 2953.3367569581. The cubic root of 8722198 is about 205.8457858610.

The spelling of 8722198 in words is "eight million, seven hundred twenty-two thousand, one hundred ninety-eight".