671134729 has 2 divisors, whose sum is σ = 671134730. Its totient is φ = 671134728.

The previous prime is 671134693. The next prime is 671134741. The reversal of 671134729 is 927431176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456805129 + 214329600 = 21373^2 + 14640^2 .

It is a cyclic number.

It is not a de Polignac number, because 671134729 - 2¹³ = 671126537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 671134691 and 671134700.

It is not a weakly prime, because it can be changed into another prime (671134769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335567364 + 335567365.

It is an arithmetic number, because the mean of its divisors is an integer number (335567365).

Almost surely, 2^671134729 is an apocalyptic number.

It is an amenable number.

671134729 is a deficient number, since it is larger than the sum of its proper divisors (1).

671134729 is an equidigital number, since it uses as much as digits as its factorization.

671134729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 671134729 is about 25906.2681411275. The cubic root of 671134729 is about 875.5277269341.

The spelling of 671134729 in words is "six hundred seventy-one million, one hundred thirty-four thousand, seven hundred twenty-nine".