64834907 has 4 divisors (see below), whose sum is σ = 67653840. Its totient is φ = 62015976.

The previous prime is 64834901. The next prime is 64834909. The reversal of 64834907 is 70943846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70943846 = 2 ⋅35471923.

It is a cyclic number.

It is not a de Polignac number, because 64834907 - 2¹² = 64830811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64834901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409432 + ... + 1409477.

It is an arithmetic number, because the mean of its divisors is an integer number (16913460).

Almost surely, 2^64834907 is an apocalyptic number.

64834907 is a deficient number, since it is larger than the sum of its proper divisors (2818933).

64834907 is a wasteful number, since it uses less digits than its factorization.

64834907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818932.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 64834907 is about 8052.0126055540. The cubic root of 64834907 is about 401.7318802383.

The spelling of 64834907 in words is "sixty-four million, eight hundred thirty-four thousand, nine hundred seven".