64828085 has 16 divisors (see below), whose sum is σ = 89202816. Its totient is φ = 44305728.

The previous prime is 64828081. The next prime is 64828091. The reversal of 64828085 is 58082846.

It is a cyclic number.

It is not a de Polignac number, because 64828085 - 2² = 64828081 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 (64828081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8174 + ... + 14016.

It is an arithmetic number, because the mean of its divisors is an integer number (5575176).

Almost surely, 2^64828085 is an apocalyptic number.

It is an amenable number.

64828085 is a deficient number, since it is larger than the sum of its proper divisors (24374731).

64828085 is a wasteful number, since it uses less digits than its factorization.

64828085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 64828085 is about 8051.5889736126. The cubic root of 64828085 is about 401.7177895211.

The spelling of 64828085 in words is "sixty-four million, eight hundred twenty-eight thousand, eighty-five".