647101696 has 36 divisors (see below), whose sum is σ = 1359668800. Its totient is φ = 306519552.

The previous prime is 647101681. The next prime is 647101699. The reversal of 647101696 is 696101746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647101699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61656 + ... + 71383.

Almost surely, 2^647101696 is an apocalyptic number.

It is an amenable number.

647101696 is an abundant number, since it is smaller than the sum of its proper divisors (712567104).

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

647101696 is a wasteful number, since it uses less digits than its factorization.

647101696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133074 (or 133060 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 647101696 is about 25438.1936465622. The cubic root of 647101696 is about 864.9496873406.

Subtracting 647101696 from its reverse (696101746), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 647101696 in words is "six hundred forty-seven million, one hundred one thousand, six hundred ninety-six".