64548837 has 6 divisors (see below), whose sum is σ = 93237222. Its totient is φ = 43032552.

The previous prime is 64548829. The next prime is 64548853. The reversal of 64548837 is 73884546.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 772641 = 7986^2 + 879^2 .

It is not a de Polignac number, because 64548837 - 2³ = 64548829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64548792 and 64548801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64548857) 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, 3586038 + ... + 3586055.

It is an arithmetic number, because the mean of its divisors is an integer number (15539537).

Almost surely, 2^64548837 is an apocalyptic number.

It is an amenable number.

64548837 is a deficient number, since it is larger than the sum of its proper divisors (28688385).

64548837 is a wasteful number, since it uses less digits than its factorization.

64548837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172099 (or 7172096 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 64548837 is about 8034.2290856062. The cubic root of 64548837 is about 401.1401574314.

The spelling of 64548837 in words is "sixty-four million, five hundred forty-eight thousand, eight hundred thirty-seven".