663470846 has 4 divisors (see below), whose sum is σ = 995206272. Its totient is φ = 331735422.

The previous prime is 663470837. The next prime is 663470851. The reversal of 663470846 is 648074366.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 663470797 and 663470806.

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, 165867710 + ... + 165867713.

It is an arithmetic number, because the mean of its divisors is an integer number (248801568).

Almost surely, 2^663470846 is an apocalyptic number.

663470846 is a deficient number, since it is larger than the sum of its proper divisors (331735426).

663470846 is a wasteful number, since it uses less digits than its factorization.

663470846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331735425.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 663470846 is about 25757.9278281464. The cubic root of 663470846 is about 872.1823249971.

The spelling of 663470846 in words is "six hundred sixty-three million, four hundred seventy thousand, eight hundred forty-six".