671806732 has 6 divisors (see below), whose sum is σ = 1175661788. Its totient is φ = 335903364.

The previous prime is 671806699. The next prime is 671806739. The reversal of 671806732 is 237608176.

It is not an unprimeable number, because it can be changed into a prime (671806739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83975838 + ... + 83975845.

Almost surely, 2^671806732 is an apocalyptic number.

It is an amenable number.

671806732 is a deficient number, since it is larger than the sum of its proper divisors (503855056).

671806732 is a wasteful number, since it uses less digits than its factorization.

671806732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167951687 (or 167951685 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 671806732 is about 25919.2347880874. The cubic root of 671806732 is about 875.8198495984.

The spelling of 671806732 in words is "six hundred seventy-one million, eight hundred six thousand, seven hundred thirty-two".