64436441 has 4 divisors (see below), whose sum is σ = 64530384. Its totient is φ = 64342500.

The previous prime is 64436419. The next prime is 64436453. The reversal of 64436441 is 14463446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64436441 - 2⁶ = 64436377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64436398 and 64436407.

It is not an unprimeable number, because it can be changed into a prime (64436641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45935 + ... + 47316.

It is an arithmetic number, because the mean of its divisors is an integer number (16132596).

Almost surely, 2^64436441 is an apocalyptic number.

It is an amenable number.

64436441 is a deficient number, since it is larger than the sum of its proper divisors (93943).

64436441 is an equidigital number, since it uses as much as digits as its factorization.

64436441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93942.

The product of its digits is 27648, while the sum is 32.

The square root of 64436441 is about 8027.2312163037. The cubic root of 64436441 is about 400.9071930299.

Adding to 64436441 its reverse (14463446), we get a palindrome (78899887).

The spelling of 64436441 in words is "sixty-four million, four hundred thirty-six thousand, four hundred forty-one".