172743693 has 4 divisors (see below), whose sum is σ = 230324928. Its totient is φ = 115162460.

The previous prime is 172743673. The next prime is 172743709. The reversal of 172743693 is 396347271.

172743693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172743693 - 2⁶ = 172743629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172743653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28790613 + ... + 28790618.

It is an arithmetic number, because the mean of its divisors is an integer number (57581232).

Almost surely, 2^172743693 is an apocalyptic number.

It is an amenable number.

172743693 is a deficient number, since it is larger than the sum of its proper divisors (57581235).

172743693 is an equidigital number, since it uses as much as digits as its factorization.

172743693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57581234.

The product of its digits is 190512, while the sum is 42.

The square root of 172743693 is about 13143.1994963175. The cubic root of 172743693 is about 556.9301548634.

The spelling of 172743693 in words is "one hundred seventy-two million, seven hundred forty-three thousand, six hundred ninety-three".