64280070 has 24 divisors (see below), whose sum is σ = 167128416. Its totient is φ = 17141328.

The previous prime is 64280023. The next prime is 64280089. The reversal of 64280070 is 7008246.

64280070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 357022 + ... + 357201.

It is an arithmetic number, because the mean of its divisors is an integer number (6963684).

Almost surely, 2^64280070 is an apocalyptic number.

64280070 is an abundant number, since it is smaller than the sum of its proper divisors (102848346).

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

64280070 is a wasteful number, since it uses less digits than its factorization.

64280070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714236 (or 714233 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 64280070 is about 8017.4852665908. The cubic root of 64280070 is about 400.5826301100.

The spelling of 64280070 in words is "sixty-four million, two hundred eighty thousand, seventy".