172076563 has 2 divisors, whose sum is σ = 172076564. Its totient is φ = 172076562.

The previous prime is 172076561. The next prime is 172076587. The reversal of 172076563 is 365670271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172076563 - 2¹ = 172076561 is a prime.

It is a super-2 number, since 2×172076563² = 59220687067785938, which contains 22 as substring.

Together with 172076561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (172076561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86038281 + 86038282.

It is an arithmetic number, because the mean of its divisors is an integer number (86038282).

Almost surely, 2^172076563 is an apocalyptic number.

172076563 is a deficient number, since it is larger than the sum of its proper divisors (1).

172076563 is an equidigital number, since it uses as much as digits as its factorization.

172076563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 172076563 is about 13117.7956608570. The cubic root of 172076563 is about 556.2122817837.

The spelling of 172076563 in words is "one hundred seventy-two million, seventy-six thousand, five hundred sixty-three".