647932 has 6 divisors (see below), whose sum is σ = 1133888. Its totient is φ = 323964.

The previous prime is 647917. The next prime is 647951. The reversal of 647932 is 239746.

It is a junction number, because it is equal to n+sod(n) for n = 647894 and 647903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80988 + ... + 80995.

2⁶⁴⁷⁹³² is an apocalyptic number.

It is an amenable number.

647932 is a deficient number, since it is larger than the sum of its proper divisors (485956).

647932 is a wasteful number, since it uses less digits than its factorization.

647932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161987 (or 161985 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 647932 is about 804.9422339522. The cubic root of 647932 is about 86.5319471690.

The spelling of 647932 in words is "six hundred forty-seven thousand, nine hundred thirty-two".