73221198 has 16 divisors (see below), whose sum is σ = 146527056. Its totient is φ = 24392960.

The previous prime is 73221191. The next prime is 73221221. The reversal of 73221198 is 89112237.

It is a super-2 number, since 2×73221198² = 10722687673110408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73221191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16240 + ... + 20252.

It is an arithmetic number, because the mean of its divisors is an integer number (9157941).

Almost surely, 2^73221198 is an apocalyptic number.

73221198 is an abundant number, since it is smaller than the sum of its proper divisors (73305858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73221198 is a wasteful number, since it uses less digits than its factorization.

73221198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059.

The product of its digits is 6048, while the sum is 33.

The square root of 73221198 is about 8556.9385880699. The cubic root of 73221198 is about 418.3556225150.

The spelling of 73221198 in words is "seventy-three million, two hundred twenty-one thousand, one hundred ninety-eight".