64464841 has 27 divisors (see below), whose sum is σ = 79637607. Its totient is φ = 52027920.

The previous prime is 64464797. The next prime is 64464847. The reversal of 64464841 is 14846446.

The square root of 64464841 is 8029.

It is a perfect power (a square), and thus also a powerful number.

64464841 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in only one way, i.e., 57684025 + 6780816 = 7595^2 + 2604^2 .

It is not a de Polignac number, because 64464841 - 2²¹ = 62367689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 64464841.

It is not an unprimeable number, because it can be changed into a prime (64464847) 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 26 ways as a sum of consecutive naturals, for example, 1742275 + ... + 1742311.

It is an arithmetic number, because the mean of its divisors is an integer number (2949541).

Almost surely, 2^64464841 is an apocalyptic number.

64464841 is the 8029-th square number.

64464841 is the 4015-th centered octagonal number.

It is an amenable number.

64464841 is a deficient number, since it is larger than the sum of its proper divisors (15172766).

64464841 is an equidigital number, since it uses as much as digits as its factorization.

64464841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 75 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The cubic root of 64464841 is about 400.9660835778.

The spelling of 64464841 in words is "sixty-four million, four hundred sixty-four thousand, eight hundred forty-one".