64747441 has 16 divisors (see below), whose sum is σ = 75316608. Its totient is φ = 55008000.

The previous prime is 64747439. The next prime is 64747453. The reversal of 64747441 is 14474746.

It is a cyclic number.

It is not a de Polignac number, because 64747441 - 2¹ = 64747439 is a prime.

It is a super-2 number, since 2×64747441² = 8384462232096962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64747441.

It is not an unprimeable number, because it can be changed into a prime (64747481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27091 + ... + 29383.

It is an arithmetic number, because the mean of its divisors is an integer number (4707288).

Almost surely, 2^64747441 is an apocalyptic number.

It is an amenable number.

64747441 is a deficient number, since it is larger than the sum of its proper divisors (10569167).

64747441 is a wasteful number, since it uses less digits than its factorization.

64747441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 75264, while the sum is 37.

The square root of 64747441 is about 8046.5794596213. The cubic root of 64747441 is about 401.5511458412.

The spelling of 64747441 in words is "sixty-four million, seven hundred forty-seven thousand, four hundred forty-one".