671327531 has 8 divisors (see below), whose sum is σ = 767430144. Its totient is φ = 575274600.

The previous prime is 671327497. The next prime is 671327539. The reversal of 671327531 is 135723176.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671327531 is a prime.

It is a super-2 number, since 2×671327531² = 901361307757111922, 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 = 671327491 and 671327500.

It is not an unprimeable number, because it can be changed into a prime (671327539) 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, 23456 + ... + 43506.

It is an arithmetic number, because the mean of its divisors is an integer number (95928768).

Almost surely, 2^671327531 is an apocalyptic number.

671327531 is a deficient number, since it is larger than the sum of its proper divisors (96102613).

671327531 is a wasteful number, since it uses less digits than its factorization.

671327531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24841.

The product of its digits is 26460, while the sum is 35.

The square root of 671327531 is about 25909.9890196812. The cubic root of 671327531 is about 875.6115587529.

The spelling of 671327531 in words is "six hundred seventy-one million, three hundred twenty-seven thousand, five hundred thirty-one".