671087054 has 24 divisors (see below), whose sum is σ = 1154578320. Its totient is φ = 291774560.

The previous prime is 671087041. The next prime is 671087059. The reversal of 671087054 is 450780176.

It is a junction number, because it is equal to n+sod(n) for n = 671086999 and 671087017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671087059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54719 + ... + 65850.

It is an arithmetic number, because the mean of its divisors is an integer number (48107430).

Almost surely, 2^671087054 is an apocalyptic number.

671087054 is a deficient number, since it is larger than the sum of its proper divisors (483491266).

671087054 is a wasteful number, since it uses less digits than its factorization.

671087054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120616 (or 120605 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 671087054 is about 25905.3479806777. The cubic root of 671087054 is about 875.5069949951.

The spelling of 671087054 in words is "six hundred seventy-one million, eighty-seven thousand, fifty-four".