64415 has 8 divisors (see below), whose sum is σ = 83328. Its totient is φ = 47520.

The previous prime is 64403. The next prime is 64433. The reversal of 64415 is 51446.

It is a happy number.

64415 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 64415 - 2⁴ = 64399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (10416).

2⁶⁴⁴¹⁵ is an apocalyptic number.

64415 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64415 is a deficient number, since it is larger than the sum of its proper divisors (18913).

64415 is a wasteful number, since it uses less digits than its factorization.

64415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its digits is 480, while the sum is 20.

The square root of 64415 is about 253.8011032285. The cubic root of 64415 is about 40.0862721276.

It can be divided in two parts, 6441 and 5, that added together give a palindrome (6446).

The spelling of 64415 in words is "sixty-four thousand, four hundred fifteen".