64945370 has 16 divisors (see below), whose sum is σ = 133602048. Its totient is φ = 22266960.

The previous prime is 64945369. The next prime is 64945373. The reversal of 64945370 is 7354946.

It is not an unprimeable number, because it can be changed into a prime (64945373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 463826 + ... + 463965.

It is an arithmetic number, because the mean of its divisors is an integer number (8350128).

Almost surely, 2^64945370 is an apocalyptic number.

64945370 is an abundant number, since it is smaller than the sum of its proper divisors (68656678).

64945370 is a wasteful number, since it uses less digits than its factorization.

64945370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927805.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 64945370 is about 8058.8690273512. The cubic root of 64945370 is about 401.9599021085.

The spelling of 64945370 in words is "sixty-four million, nine hundred forty-five thousand, three hundred seventy".