647110464 has 504 divisors, whose sum is σ = 2416320288. Its totient is φ = 150958080.

The previous prime is 647110463. The next prime is 647110481. The reversal of 647110464 is 464011746.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647110463) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17489454 + ... + 17489490.

Almost surely, 2^647110464 is an apocalyptic number.

647110464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647110464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1208160144).

647110464 is an abundant number, since it is smaller than the sum of its proper divisors (1769209824).

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

647110464 is a wasteful number, since it uses less digits than its factorization.

647110464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 647110464 is about 25438.3659852594. The cubic root of 647110464 is about 864.9535939108.

Multiplying 647110464 by its sum of digits (33), we get a palindrome (21354645312).

It can be divided in two parts, 647 and 110464, that added together give a palindrome (111111).

The spelling of 647110464 in words is "six hundred forty-seven million, one hundred ten thousand, four hundred sixty-four".