64340653 has 8 divisors (see below), whose sum is σ = 69598368. Its totient is φ = 59127024.

The previous prime is 64340651. The next prime is 64340657. The reversal of 64340653 is 35604346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64340653 - 2¹ = 64340651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64340651) 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, 7951 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (8699796).

Almost surely, 2^64340653 is an apocalyptic number.

It is an amenable number.

64340653 is a deficient number, since it is larger than the sum of its proper divisors (5257715).

64340653 is a wasteful number, since it uses less digits than its factorization.

64340653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22043.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 64340653 is about 8021.2625564807. The cubic root of 64340653 is about 400.7084382972.

Adding to 64340653 its reverse (35604346), we get a palindrome (99944999).

The spelling of 64340653 in words is "sixty-four million, three hundred forty thousand, six hundred fifty-three".