671022481 has 2 divisors, whose sum is σ = 671022482. Its totient is φ = 671022480.

The previous prime is 671022467. The next prime is 671022557. The reversal of 671022481 is 184220176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546811456 + 124211025 = 23384^2 + 11145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671022481 is a prime.

It is a super-2 number, since 2×671022481² = 900542340014790722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671022461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335511240 + 335511241.

It is an arithmetic number, because the mean of its divisors is an integer number (335511241).

Almost surely, 2^671022481 is an apocalyptic number.

It is an amenable number.

671022481 is a deficient number, since it is larger than the sum of its proper divisors (1).

671022481 is an equidigital number, since it uses as much as digits as its factorization.

671022481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 671022481 is about 25904.1016250323. The cubic root of 671022481 is about 875.4789132302.

The spelling of 671022481 in words is "six hundred seventy-one million, twenty-two thousand, four hundred eighty-one".