64733841 has 12 divisors (see below), whose sum is σ = 99004932. Its totient is φ = 40617216.

The previous prime is 64733839. The next prime is 64733863. The reversal of 64733841 is 14833746.

64733841 is a `hidden beast` number, since 647 + 3 + 3 + 8 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38937600 + 25796241 = 6240^2 + 5079^2 .

It is not a de Polignac number, because 64733841 - 2¹ = 64733839 is a prime.

It is a super-2 number, since 2×64733841² = 8380940341226562, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64733796 and 64733805.

It is not an unprimeable number, because it can be changed into a prime (64733821) 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, 211396 + ... + 211701.

It is an arithmetic number, because the mean of its divisors is an integer number (8250411).

Almost surely, 2^64733841 is an apocalyptic number.

It is an amenable number.

64733841 is a deficient number, since it is larger than the sum of its proper divisors (34271091).

64733841 is a wasteful number, since it uses less digits than its factorization.

64733841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423120 (or 423117 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 64733841 is about 8045.7343356589. The cubic root of 64733841 is about 401.5230290131.

The spelling of 64733841 in words is "sixty-four million, seven hundred thirty-three thousand, eight hundred forty-one".