73173222 has 12 divisors (see below), whose sum is σ = 158542020. Its totient is φ = 24391068.

The previous prime is 73173203. The next prime is 73173251. The reversal of 73173222 is 22237137.

It is a happy number.

It is a super-2 number, since 2×73173222² = 10708640835722568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2032572 + ... + 2032607.

It is an arithmetic number, because the mean of its divisors is an integer number (13211835).

Almost surely, 2^73173222 is an apocalyptic number.

73173222 is an abundant number, since it is smaller than the sum of its proper divisors (85368798).

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

73173222 is a wasteful number, since it uses less digits than its factorization.

73173222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065187 (or 4065184 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 73173222 is about 8554.1347896792. The cubic root of 73173222 is about 418.2642308819.

The spelling of 73173222 in words is "seventy-three million, one hundred seventy-three thousand, two hundred twenty-two".