671033081 has 2 divisors, whose sum is σ = 671033082. Its totient is φ = 671033080.

The previous prime is 671033071. The next prime is 671033087. The reversal of 671033081 is 180330176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657409600 + 13623481 = 25640^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 671033081 - 2¹⁰ = 671032057 is a prime.

It is a super-2 number, since 2×671033081² = 900570791592705122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671033087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335516540 + 335516541.

It is an arithmetic number, because the mean of its divisors is an integer number (335516541).

Almost surely, 2^671033081 is an apocalyptic number.

It is an amenable number.

671033081 is a deficient number, since it is larger than the sum of its proper divisors (1).

671033081 is an equidigital number, since it uses as much as digits as its factorization.

671033081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 671033081 is about 25904.3062250275. The cubic root of 671033081 is about 875.4835231243.

The spelling of 671033081 in words is "six hundred seventy-one million, thirty-three thousand, eighty-one".