64415706 has 16 divisors (see below), whose sum is σ = 132987648. Its totient is φ = 20779200.

The previous prime is 64415693. The next prime is 64415707. The reversal of 64415706 is 60751446.

It is not an unprimeable number, because it can be changed into a prime (64415707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172975 + ... + 173346.

It is an arithmetic number, because the mean of its divisors is an integer number (8311728).

Almost surely, 2^64415706 is an apocalyptic number.

64415706 is an abundant number, since it is smaller than the sum of its proper divisors (68571942).

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

64415706 is a wasteful number, since it uses less digits than its factorization.

64415706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346357.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 64415706 is about 8025.9395711655. The cubic root of 64415706 is about 400.8641857795.

The spelling of 64415706 in words is "sixty-four million, four hundred fifteen thousand, seven hundred six".