172773532 has 24 divisors (see below), whose sum is σ = 313331760. Its totient is φ = 83260800.

The previous prime is 172773511. The next prime is 172773541. The reversal of 172773532 is 235377271.

It is a junction number, because it is equal to n+sod(n) for n = 172773491 and 172773500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95032 + ... + 96832.

It is an arithmetic number, because the mean of its divisors is an integer number (13055490).

Almost surely, 2^172773532 is an apocalyptic number.

It is an amenable number.

172773532 is a deficient number, since it is larger than the sum of its proper divisors (140558228).

172773532 is a wasteful number, since it uses less digits than its factorization.

172773532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2659 counting only the distinct ones).

The product of its digits is 61740, while the sum is 37.

The square root of 172773532 is about 13144.3345970802. The cubic root of 172773532 is about 556.9622202543.

The spelling of 172773532 in words is "one hundred seventy-two million, seven hundred seventy-three thousand, five hundred thirty-two".