64463805 has 48 divisors (see below), whose sum is σ = 131174784. Its totient is φ = 28667520.

The previous prime is 64463783. The next prime is 64463821. The reversal of 64463805 is 50836446.

64463805 is a `hidden beast` number, since 644 + 6 + 3 + 8 + 0 + 5 = 666.

It is not a de Polignac number, because 64463805 - 2⁹ = 64463293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64463805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8890 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (2732808).

Almost surely, 2^64463805 is an apocalyptic number.

It is an amenable number.

64463805 is an abundant number, since it is smaller than the sum of its proper divisors (66710979).

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

64463805 is a wasteful number, since it uses less digits than its factorization.

64463805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586 (or 5583 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 64463805 is about 8028.9354836118. The cubic root of 64463805 is about 400.9639356210.

The spelling of 64463805 in words is "sixty-four million, four hundred sixty-three thousand, eight hundred five".