671542959 has 8 divisors (see below), whose sum is σ = 948060720. Its totient is φ = 421360256.

The previous prime is 671542951. The next prime is 671542967. The reversal of 671542959 is 959245176.

It is an interprime number because it is at equal distance from previous prime (671542951) and next prime (671542967).

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

It is a cyclic number.

It is not a de Polignac number, because 671542959 - 2³ = 671542951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671542951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6583704 + ... + 6583805.

It is an arithmetic number, because the mean of its divisors is an integer number (118507590).

Almost surely, 2^671542959 is an apocalyptic number.

671542959 is a deficient number, since it is larger than the sum of its proper divisors (276517761).

671542959 is a wasteful number, since it uses less digits than its factorization.

671542959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13167529.

The product of its digits is 680400, while the sum is 48.

The square root of 671542959 is about 25914.1459245718. The cubic root of 671542959 is about 875.7052095490.

The spelling of 671542959 in words is "six hundred seventy-one million, five hundred forty-two thousand, nine hundred fifty-nine".