64522087 has 4 divisors (see below), whose sum is σ = 73739536. Its totient is φ = 55304640.

The previous prime is 64522049. The next prime is 64522099. The reversal of 64522087 is 78022546.

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

It is a cyclic number.

It is not a de Polignac number, because 64522087 - 2¹¹ = 64520039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64522027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4608714 + ... + 4608727.

It is an arithmetic number, because the mean of its divisors is an integer number (18434884).

Almost surely, 2^64522087 is an apocalyptic number.

64522087 is a deficient number, since it is larger than the sum of its proper divisors (9217449).

64522087 is an equidigital number, since it uses as much as digits as its factorization.

64522087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217448.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 64522087 is about 8032.5641609638. The cubic root of 64522087 is about 401.0847369553.

The spelling of 64522087 in words is "sixty-four million, five hundred twenty-two thousand, eighty-seven".