671479801 has 2 divisors, whose sum is σ = 671479802. Its totient is φ = 671479800.

The previous prime is 671479771. The next prime is 671479807. The reversal of 671479801 is 108974176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449440000 + 222039801 = 21200^2 + 14901^2 .

It is a cyclic number.

It is not a de Polignac number, because 671479801 - 2²⁵ = 637925369 is a prime.

It is not a weakly prime, because it can be changed into another prime (671479807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335739900 + 335739901.

It is an arithmetic number, because the mean of its divisors is an integer number (335739901).

Almost surely, 2^671479801 is an apocalyptic number.

It is an amenable number.

671479801 is a deficient number, since it is larger than the sum of its proper divisors (1).

671479801 is an equidigital number, since it uses as much as digits as its factorization.

671479801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 671479801 is about 25912.9272950780. The cubic root of 671479801 is about 875.6777555975.

The spelling of 671479801 in words is "six hundred seventy-one million, four hundred seventy-nine thousand, eight hundred one".