172652647 has 4 divisors (see below), whose sum is σ = 172883296. Its totient is φ = 172422000.

The previous prime is 172652633. The next prime is 172652657. The reversal of 172652647 is 746256271.

172652647 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172652647 is a prime.

It is a super-2 number, since 2×172652647² = 59617873032213218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172652657) 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, 114198 + ... + 115699.

It is an arithmetic number, because the mean of its divisors is an integer number (43220824).

Almost surely, 2^172652647 is an apocalyptic number.

172652647 is a deficient number, since it is larger than the sum of its proper divisors (230649).

172652647 is an equidigital number, since it uses as much as digits as its factorization.

172652647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230648.

The product of its digits is 141120, while the sum is 40.

The square root of 172652647 is about 13139.7354235160. The cubic root of 172652647 is about 556.8322927784.

The spelling of 172652647 in words is "one hundred seventy-two million, six hundred fifty-two thousand, six hundred forty-seven".