172223764 has 12 divisors (see below), whose sum is σ = 301485184. Its totient is φ = 86085144.

The previous prime is 172223759. The next prime is 172223803. The reversal of 172223764 is 467322271.

It is a super-2 number, since 2×172223764² = 59322049772655392, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17647 + ... + 25609.

Almost surely, 2^172223764 is an apocalyptic number.

It is an amenable number.

172223764 is a deficient number, since it is larger than the sum of its proper divisors (129261420).

172223764 is a wasteful number, since it uses less digits than its factorization.

172223764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374 (or 13372 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 172223764 is about 13123.4051983470. The cubic root of 172223764 is about 556.3708384699.

The spelling of 172223764 in words is "one hundred seventy-two million, two hundred twenty-three thousand, seven hundred sixty-four".