64845536 has 24 divisors (see below), whose sum is σ = 145902960. Its totient is φ = 27790848.

The previous prime is 64845509. The next prime is 64845541. The reversal of 64845536 is 63554846.

It is a super-3 number, since 3×64845536³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64845493 and 64845502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144521 + ... + 144968.

It is an arithmetic number, because the mean of its divisors is an integer number (6079290).

Almost surely, 2^64845536 is an apocalyptic number.

It is an amenable number.

64845536 is an abundant number, since it is smaller than the sum of its proper divisors (81057424).

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

64845536 is a wasteful number, since it uses less digits than its factorization.

64845536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289506 (or 289498 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 64845536 is about 8052.6725998267. The cubic root of 64845536 is about 401.7538322753.

The spelling of 64845536 in words is "sixty-four million, eight hundred forty-five thousand, five hundred thirty-six".