64906653 has 32 divisors (see below), whose sum is σ = 102850560. Its totient is φ = 35628480.

The previous prime is 64906643. The next prime is 64906657. The reversal of 64906653 is 35660946.

It is a happy number.

It is not a de Polignac number, because 64906653 - 2¹² = 64902557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64906657) 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 in 31 ways as a sum of consecutive naturals, for example, 116251 + ... + 116807.

It is an arithmetic number, because the mean of its divisors is an integer number (3214080).

Almost surely, 2^64906653 is an apocalyptic number.

It is an amenable number.

64906653 is a deficient number, since it is larger than the sum of its proper divisors (37943907).

64906653 is a wasteful number, since it uses less digits than its factorization.

64906653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 64906653 is about 8056.4665331645. The cubic root of 64906653 is about 401.8800104749.

The spelling of 64906653 in words is "sixty-four million, nine hundred six thousand, six hundred fifty-three".