172017463 has 4 divisors (see below), whose sum is σ = 172051840. Its totient is φ = 171983088.

The previous prime is 172017457. The next prime is 172017479. The reversal of 172017463 is 364710271.

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-172017463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172017413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8070 + ... + 20227.

It is an arithmetic number, because the mean of its divisors is an integer number (43012960).

Almost surely, 2^172017463 is an apocalyptic number.

172017463 is a deficient number, since it is larger than the sum of its proper divisors (34377).

172017463 is an equidigital number, since it uses as much as digits as its factorization.

172017463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34376.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 172017463 is about 13115.5428023395. The cubic root of 172017463 is about 556.1485971282.

The spelling of 172017463 in words is "one hundred seventy-two million, seventeen thousand, four hundred sixty-three".