64971441 has 12 divisors (see below), whose sum is σ = 95249232. Its totient is φ = 42667416.

The previous prime is 64971421. The next prime is 64971457. The reversal of 64971441 is 14417946.

64971441 is a `hidden beast` number, since 649 + 7 + 1 + 4 + 4 + 1 = 666.

It is not a de Polignac number, because 64971441 - 2¹⁰ = 64970417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64971396 and 64971405.

It is not an unprimeable number, because it can be changed into a prime (64971421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53271 + ... + 54476.

It is an arithmetic number, because the mean of its divisors is an integer number (7937436).

Almost surely, 2^64971441 is an apocalyptic number.

It is an amenable number.

64971441 is a deficient number, since it is larger than the sum of its proper divisors (30277791).

64971441 is a wasteful number, since it uses less digits than its factorization.

64971441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107820 (or 107817 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 64971441 is about 8060.4863997156. The cubic root of 64971441 is about 402.0136811264.

The spelling of 64971441 in words is "sixty-four million, nine hundred seventy-one thousand, four hundred forty-one".