671127229 has 2 divisors, whose sum is σ = 671127230. Its totient is φ = 671127228.

The previous prime is 671127221. The next prime is 671127257. The reversal of 671127229 is 922721176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 630512100 + 40615129 = 25110^2 + 6373^2 .

It is a cyclic number.

It is not a de Polignac number, because 671127229 - 2³ = 671127221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671127221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335563614 + 335563615.

It is an arithmetic number, because the mean of its divisors is an integer number (335563615).

Almost surely, 2^671127229 is an apocalyptic number.

It is an amenable number.

671127229 is a deficient number, since it is larger than the sum of its proper divisors (1).

671127229 is an equidigital number, since it uses as much as digits as its factorization.

671127229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 671127229 is about 25906.1233881104. The cubic root of 671127229 is about 875.5244655510.

The spelling of 671127229 in words is "six hundred seventy-one million, one hundred twenty-seven thousand, two hundred twenty-nine".