64340463 has 16 divisors (see below), whose sum is σ = 95354496. Its totient is φ = 38257440.

The previous prime is 64340449. The next prime is 64340467. The reversal of 64340463 is 36404346.

It is not a de Polignac number, because 64340463 - 2⁵ = 64340431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64340463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64340467) 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 15 ways as a sum of consecutive naturals, for example, 16645 + ... + 20142.

It is an arithmetic number, because the mean of its divisors is an integer number (5959656).

Almost surely, 2^64340463 is an apocalyptic number.

64340463 is a deficient number, since it is larger than the sum of its proper divisors (31014033).

64340463 is a wasteful number, since it uses less digits than its factorization.

64340463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36854.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 64340463 is about 8021.2507129499. The cubic root of 64340463 is about 400.7080438619.

The spelling of 64340463 in words is "sixty-four million, three hundred forty thousand, four hundred sixty-three".