64413785 has 16 divisors (see below), whose sum is σ = 81829440. Its totient is φ = 48592320.

The previous prime is 64413779. The next prime is 64413821. The reversal of 64413785 is 58731446.

It is not a de Polignac number, because 64413785 - 2¹² = 64409689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (5114340).

Almost surely, 2^64413785 is an apocalyptic number.

It is an amenable number.

64413785 is a deficient number, since it is larger than the sum of its proper divisors (17415655).

64413785 is a wasteful number, since it uses less digits than its factorization.

64413785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408.

The product of its digits is 80640, while the sum is 38.

The square root of 64413785 is about 8025.8198958113. The cubic root of 64413785 is about 400.8602008933.

The spelling of 64413785 in words is "sixty-four million, four hundred thirteen thousand, seven hundred eighty-five".