671075577 has 32 divisors (see below), whose sum is σ = 1062754560. Its totient is φ = 417479040.

The previous prime is 671075567. The next prime is 671075593. The reversal of 671075577 is 775570176.

671075577 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 75 + 577 = 666.

It is not a de Polignac number, because 671075577 - 2⁶ = 671075513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671075557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12283 + ... + 38639.

It is an arithmetic number, because the mean of its divisors is an integer number (33211080).

Almost surely, 2^671075577 is an apocalyptic number.

It is an amenable number.

671075577 is a deficient number, since it is larger than the sum of its proper divisors (391678983).

671075577 is a wasteful number, since it uses less digits than its factorization.

671075577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26430 (or 26424 counting only the distinct ones).

The product of its (nonzero) digits is 360150, while the sum is 45.

The square root of 671075577 is about 25905.1264617643. The cubic root of 671075577 is about 875.5020039630.

The spelling of 671075577 in words is "six hundred seventy-one million, seventy-five thousand, five hundred seventy-seven".