64869336 has 168 divisors, whose sum is σ = 213069420. Its totient is φ = 18452448.

The previous prime is 64869319. The next prime is 64869347. The reversal of 64869336 is 63396846.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 64869291 and 64869300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 285655 + ... + 285881.

Almost surely, 2^64869336 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 64869336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106534710).

64869336 is an abundant number, since it is smaller than the sum of its proper divisors (148200084).

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

64869336 is a wasteful number, since it uses less digits than its factorization.

64869336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 239 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 64869336 is about 8054.1502345064. The cubic root of 64869336 is about 401.8029776354.

The spelling of 64869336 in words is "sixty-four million, eight hundred sixty-nine thousand, three hundred thirty-six".