647362436 has 24 divisors (see below), whose sum is σ = 1297583616. Its totient is φ = 276828480.

The previous prime is 647362427. The next prime is 647362481. The reversal of 647362436 is 634263746.

It is a junction number, because it is equal to n+sod(n) for n = 647362393 and 647362402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12500 + ... + 38091.

It is an arithmetic number, because the mean of its divisors is an integer number (54065984).

Almost surely, 2^647362436 is an apocalyptic number.

It is an amenable number.

647362436 is an abundant number, since it is smaller than the sum of its proper divisors (650221180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647362436 is a wasteful number, since it uses less digits than its factorization.

647362436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51059 (or 51057 counting only the distinct ones).

The product of its digits is 435456, while the sum is 41.

The square root of 647362436 is about 25443.3181012226. The cubic root of 647362436 is about 865.0658446096.

The spelling of 647362436 in words is "six hundred forty-seven million, three hundred sixty-two thousand, four hundred thirty-six".