671422065 has 32 divisors (see below), whose sum is σ = 1130198400. Its totient is φ = 339870720.

The previous prime is 671422033. The next prime is 671422097. The reversal of 671422065 is 560224176.

It is an interprime number because it is at equal distance from previous prime (671422033) and next prime (671422097).

It is not a de Polignac number, because 671422065 - 2⁵ = 671422033 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12585 + ... + 38745.

It is an arithmetic number, because the mean of its divisors is an integer number (35318700).

Almost surely, 2^671422065 is an apocalyptic number.

It is an amenable number.

671422065 is a deficient number, since it is larger than the sum of its proper divisors (458776335).

671422065 is a wasteful number, since it uses less digits than its factorization.

671422065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26257.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 671422065 is about 25911.8132325779. The cubic root of 671422065 is about 875.6526570118.

The spelling of 671422065 in words is "six hundred seventy-one million, four hundred twenty-two thousand, sixty-five".