172087607 has 2 divisors, whose sum is σ = 172087608. Its totient is φ = 172087606.

The previous prime is 172087523. The next prime is 172087609. The reversal of 172087607 is 706780271.

172087607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172087607 is a prime.

It is a super-2 number, since 2×172087607² = 59228288965972898, which contains 22 as substring.

Together with 172087609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172087609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86043803 + 86043804.

It is an arithmetic number, because the mean of its divisors is an integer number (86043804).

Almost surely, 2^172087607 is an apocalyptic number.

172087607 is a deficient number, since it is larger than the sum of its proper divisors (1).

172087607 is an equidigital number, since it uses as much as digits as its factorization.

172087607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 172087607 is about 13118.2166089755. The cubic root of 172087607 is about 556.2241808998.

The spelling of 172087607 in words is "one hundred seventy-two million, eighty-seven thousand, six hundred seven".