671481023 has 4 divisors (see below), whose sum is σ = 671887920. Its totient is φ = 671074128.

The previous prime is 671481017. The next prime is 671481121. The reversal of 671481023 is 320184176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671481023 - 2⁶ = 671480959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671487023) 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 in 3 ways as a sum of consecutive naturals, for example, 200963 + ... + 204276.

It is an arithmetic number, because the mean of its divisors is an integer number (167971980).

Almost surely, 2^671481023 is an apocalyptic number.

671481023 is a deficient number, since it is larger than the sum of its proper divisors (406897).

671481023 is a wasteful number, since it uses less digits than its factorization.

671481023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406896.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 671481023 is about 25912.9508740321. The cubic root of 671481023 is about 875.6782868011.

The spelling of 671481023 in words is "six hundred seventy-one million, four hundred eighty-one thousand, twenty-three".