64836468 has 18 divisors (see below), whose sum is σ = 163892274. Its totient is φ = 21612144.

The previous prime is 64836467. The next prime is 64836523. The reversal of 64836468 is 86463846.

It can be written as a sum of positive squares in only one way, i.e., 64834704 + 1764 = 8052^2 + 42^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64836463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900471 + ... + 900542.

Almost surely, 2^64836468 is an apocalyptic number.

It is an amenable number.

64836468 is an abundant number, since it is smaller than the sum of its proper divisors (99055806).

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

64836468 is a wasteful number, since it uses less digits than its factorization.

64836468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801023 (or 1801018 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 64836468 is about 8052.1095372579. The cubic root of 64836468 is about 401.7351043165.

The spelling of 64836468 in words is "sixty-four million, eight hundred thirty-six thousand, four hundred sixty-eight".