64627605 has 32 divisors (see below), whose sum is σ = 131308800. Its totient is φ = 29543616.

The previous prime is 64627583. The next prime is 64627613. The reversal of 64627605 is 50672646.

64627605 is a `hidden beast` number, since 6 + 46 + 2 + 7 + 605 = 666.

It is not a de Polignac number, because 64627605 - 2⁹ = 64627093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64627605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33250 + ... + 35139.

It is an arithmetic number, because the mean of its divisors is an integer number (4103400).

Almost surely, 2^64627605 is an apocalyptic number.

It is an amenable number.

64627605 is an abundant number, since it is smaller than the sum of its proper divisors (66681195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64627605 is a wasteful number, since it uses less digits than its factorization.

64627605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68410 (or 68404 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 64627605 is about 8039.1296170668. The cubic root of 64627605 is about 401.3032595912.

The spelling of 64627605 in words is "sixty-four million, six hundred twenty-seven thousand, six hundred five".