64944088 has 48 divisors (see below), whose sum is σ = 139713840. Its totient is φ = 28226880.

The previous prime is 64944049. The next prime is 64944127. The reversal of 64944088 is 88044946.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64944049) and next prime (64944127).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20806 + ... + 23722.

It is an arithmetic number, because the mean of its divisors is an integer number (2910705).

Almost surely, 2^64944088 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 64944088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69856920).

64944088 is an abundant number, since it is smaller than the sum of its proper divisors (74769752).

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

64944088 is a wasteful number, since it uses less digits than its factorization.

64944088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 64944088 is about 8058.7894872617. The cubic root of 64944088 is about 401.9572572395.

It can be divided in two parts, 6494408 and 8, that multiplied together give a square (51955264 = 7208²).

The spelling of 64944088 in words is "sixty-four million, nine hundred forty-four thousand, eighty-eight".