647478112 has 12 divisors (see below), whose sum is σ = 1274722596. Its totient is φ = 323739040.

The previous prime is 647478101. The next prime is 647478119. The reversal of 647478112 is 211874746.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647478119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116814 + ... + 10116877.

It is an arithmetic number, because the mean of its divisors is an integer number (106226883).

Almost surely, 2^647478112 is an apocalyptic number.

It is an amenable number.

647478112 is a deficient number, since it is larger than the sum of its proper divisors (627244484).

647478112 is a wasteful number, since it uses less digits than its factorization.

647478112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20233701 (or 20233693 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 647478112 is about 25445.5912094807. The cubic root of 647478112 is about 865.1173672144.

The spelling of 647478112 in words is "six hundred forty-seven million, four hundred seventy-eight thousand, one hundred twelve".