172773406 has 8 divisors (see below), whose sum is σ = 279095544. Its totient is φ = 79741560.

The previous prime is 172773389. The next prime is 172773409. The reversal of 172773406 is 604377271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172773409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3322540 + ... + 3322591.

It is an arithmetic number, because the mean of its divisors is an integer number (34886943).

Almost surely, 2^172773406 is an apocalyptic number.

172773406 is a deficient number, since it is larger than the sum of its proper divisors (106322138).

172773406 is a wasteful number, since it uses less digits than its factorization.

172773406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645146.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 172773406 is about 13144.3298041399. The cubic root of 172773406 is about 556.9620848608.

The spelling of 172773406 in words is "one hundred seventy-two million, seven hundred seventy-three thousand, four hundred six".