64506707 has 4 divisors (see below), whose sum is σ = 65564256. Its totient is φ = 63449160.

The previous prime is 64506679. The next prime is 64506713. The reversal of 64506707 is 70760546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70760546 = 2 ⋅35380273.

It is a cyclic number.

It is not a de Polignac number, because 64506707 - 2¹⁶ = 64441171 is a prime.

It is a super-2 number, since 2×64506707² = 8322230495967698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64506787) 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, 528683 + ... + 528804.

It is an arithmetic number, because the mean of its divisors is an integer number (16391064).

Almost surely, 2^64506707 is an apocalyptic number.

64506707 is a deficient number, since it is larger than the sum of its proper divisors (1057549).

64506707 is a wasteful number, since it uses less digits than its factorization.

64506707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057548.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 64506707 is about 8031.6067508314. The cubic root of 64506707 is about 401.0528658356.

The spelling of 64506707 in words is "sixty-four million, five hundred six thousand, seven hundred seven".