671522963 has 2 divisors, whose sum is σ = 671522964. Its totient is φ = 671522962.

The previous prime is 671522941. The next prime is 671522983. The reversal of 671522963 is 369225176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671522963 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671522963.

It is not a weakly prime, because it can be changed into another prime (671522923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335761481 + 335761482.

It is an arithmetic number, because the mean of its divisors is an integer number (335761482).

Almost surely, 2^671522963 is an apocalyptic number.

671522963 is a deficient number, since it is larger than the sum of its proper divisors (1).

671522963 is an equidigital number, since it uses as much as digits as its factorization.

671522963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 671522963 is about 25913.7601092547. The cubic root of 671522963 is about 875.6965177372.

The spelling of 671522963 in words is "six hundred seventy-one million, five hundred twenty-two thousand, nine hundred sixty-three".