64590657 has 16 divisors (see below), whose sum is σ = 87340032. Its totient is φ = 42455120.

The previous prime is 64590653. The next prime is 64590677. The reversal of 64590657 is 75609546.

64590657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64590657 - 2² = 64590653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64590653) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 99508 + ... + 100154.

It is an arithmetic number, because the mean of its divisors is an integer number (5458752).

Almost surely, 2^64590657 is an apocalyptic number.

It is an amenable number.

64590657 is a deficient number, since it is larger than the sum of its proper divisors (22749375).

64590657 is a wasteful number, since it uses less digits than its factorization.

64590657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 64590657 is about 8036.8312785575. The cubic root of 64590657 is about 401.2267691639.

The spelling of 64590657 in words is "sixty-four million, five hundred ninety thousand, six hundred fifty-seven".