64883500 has 96 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 23000000.

The previous prime is 64883491. The next prime is 64883503. The reversal of 64883500 is 538846.

It is not an unprimeable number, because it can be changed into a prime (64883503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258375 + ... + 258625.

It is an arithmetic number, because the mean of its divisors is an integer number (1651104).

Almost surely, 2^64883500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64883500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79252992).

64883500 is an abundant number, since it is smaller than the sum of its proper divisors (93622484).

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

64883500 is a wasteful number, since it uses less digits than its factorization.

64883500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 64883500 is about 8055.0294847381. The cubic root of 64883500 is about 401.8322196140.

It can be divided in two parts, 648 and 83500, that added together give a palindrome (84148).

The spelling of 64883500 in words is "sixty-four million, eight hundred eighty-three thousand, five hundred".