172061705 has 8 divisors (see below), whose sum is σ = 211276032. Its totient is φ = 134448048.

The previous prime is 172061699. The next prime is 172061717. The reversal of 172061705 is 507160271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172061705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399929 + ... + 400358.

It is an arithmetic number, because the mean of its divisors is an integer number (26409504).

Almost surely, 2^172061705 is an apocalyptic number.

It is an amenable number.

172061705 is a deficient number, since it is larger than the sum of its proper divisors (39214327).

172061705 is an equidigital number, since it uses as much as digits as its factorization.

172061705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800335.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 172061705 is about 13117.2293187243. The cubic root of 172061705 is about 556.1962725534.

The spelling of 172061705 in words is "one hundred seventy-two million, sixty-one thousand, seven hundred five".