64950864 has 120 divisors (see below), whose sum is σ = 188800416. Its totient is φ = 19219200.

The previous prime is 64950833. The next prime is 64950883. The reversal of 64950864 is 46805946.

64950864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64950864² = 8437229468692992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307719 + ... + 307929.

Almost surely, 2^64950864 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 64950864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94400208).

64950864 is an abundant number, since it is smaller than the sum of its proper divisors (123849552).

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

64950864 is a wasteful number, since it uses less digits than its factorization.

64950864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 64950864 is about 8059.2098868313. The cubic root of 64950864 is about 401.9712362776.

The spelling of 64950864 in words is "sixty-four million, nine hundred fifty thousand, eight hundred sixty-four".