64464543 has 36 divisors (see below), whose sum is σ = 110023992. Its totient is φ = 36054720.

The previous prime is 64464539. The next prime is 64464571. The reversal of 64464543 is 34546446.

64464543 is a `hidden beast` number, since 6 + 4 + 4 + 645 + 4 + 3 = 666.

It is not a de Polignac number, because 64464543 - 2² = 64464539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64464498 and 64464507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64464503) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14805 + ... + 18657.

It is an arithmetic number, because the mean of its divisors is an integer number (3056222).

Almost surely, 2^64464543 is an apocalyptic number.

64464543 is a deficient number, since it is larger than the sum of its proper divisors (45559449).

64464543 is a wasteful number, since it uses less digits than its factorization.

64464543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896 (or 3880 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 64464543 is about 8028.9814422503. The cubic root of 64464543 is about 400.9654657316.

The spelling of 64464543 in words is "sixty-four million, four hundred sixty-four thousand, five hundred forty-three".