171420627 has 8 divisors (see below), whose sum is σ = 261212416. Its totient is φ = 97954632.

The previous prime is 171420589. The next prime is 171420629. The reversal of 171420627 is 726024171.

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

It is not a de Polignac number, because 171420627 - 2¹¹ = 171418579 is a prime.

It is a super-2 number, since 2×171420627² = 58770062722146258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171420594 and 171420603.

It is not an unprimeable number, because it can be changed into a prime (171420629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081423 + ... + 4081464.

It is an arithmetic number, because the mean of its divisors is an integer number (32651552).

Almost surely, 2^171420627 is an apocalyptic number.

171420627 is a deficient number, since it is larger than the sum of its proper divisors (89791789).

171420627 is an equidigital number, since it uses as much as digits as its factorization.

171420627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162897.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 171420627 is about 13092.7700277672. The cubic root of 171420627 is about 555.5046428647.

Adding to 171420627 its reverse (726024171), we get a palindrome (897444798).

The spelling of 171420627 in words is "one hundred seventy-one million, four hundred twenty thousand, six hundred twenty-seven".