671303523 has 24 divisors (see below), whose sum is σ = 988185744. Its totient is φ = 405053440.

The previous prime is 671303519. The next prime is 671303579. The reversal of 671303523 is 325303176.

It is not a de Polignac number, because 671303523 - 2² = 671303519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671302523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80611 + ... + 88547.

It is an arithmetic number, because the mean of its divisors is an integer number (41174406).

Almost surely, 2^671303523 is an apocalyptic number.

671303523 is a deficient number, since it is larger than the sum of its proper divisors (316882221).

671303523 is a wasteful number, since it uses less digits than its factorization.

671303523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195 (or 8184 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 671303523 is about 25909.5257193180. The cubic root of 671303523 is about 875.6011207615.

Adding to 671303523 its reverse (325303176), we get a palindrome (996606699).

The spelling of 671303523 in words is "six hundred seventy-one million, three hundred three thousand, five hundred twenty-three".