487129171 has 4 divisors (see below), whose sum is σ = 490355344. Its totient is φ = 483903000.

The previous prime is 487129117. The next prime is 487129187. The reversal of 487129171 is 171921784.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 487129171 - 2⁷ = 487129043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487129571) 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, 1612860 + ... + 1613161.

It is an arithmetic number, because the mean of its divisors is an integer number (122588836).

Almost surely, 2^487129171 is an apocalyptic number.

487129171 is a deficient number, since it is larger than the sum of its proper divisors (3226173).

487129171 is a wasteful number, since it uses less digits than its factorization.

487129171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226172.

The product of its digits is 28224, while the sum is 40.

The square root of 487129171 is about 22071.0029450408. The cubic root of 487129171 is about 786.8308495971.

The spelling of 487129171 in words is "four hundred eighty-seven million, one hundred twenty-nine thousand, one hundred seventy-one".