64937066 has 4 divisors (see below), whose sum is σ = 97405602. Its totient is φ = 32468532.

The previous prime is 64937057. The next prime is 64937069. The reversal of 64937066 is 66073946.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64336441 + 600625 = 8021^2 + 775^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64937069) by changing a digit.

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 as a sum of consecutive naturals, namely, 16234265 + ... + 16234268.

Almost surely, 2^64937066 is an apocalyptic number.

64937066 is a deficient number, since it is larger than the sum of its proper divisors (32468536).

64937066 is a wasteful number, since it uses less digits than its factorization.

64937066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32468535.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 64937066 is about 8058.3538021112. The cubic root of 64937066 is about 401.9427696719.

The spelling of 64937066 in words is "sixty-four million, nine hundred thirty-seven thousand, sixty-six".