64983433 has 4 divisors (see below), whose sum is σ = 66739780. Its totient is φ = 63227088.

The previous prime is 64983419. The next prime is 64983437. The reversal of 64983433 is 33438946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33438946 = 2 ⋅16719473.

It can be written as a sum of positive squares in 2 ways, for example, as 24176889 + 40806544 = 4917^2 + 6388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64983433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64983437) 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, 878118 + ... + 878191.

It is an arithmetic number, because the mean of its divisors is an integer number (16684945).

Almost surely, 2^64983433 is an apocalyptic number.

It is an amenable number.

64983433 is a deficient number, since it is larger than the sum of its proper divisors (1756347).

64983433 is a wasteful number, since it uses less digits than its factorization.

64983433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756346.

The product of its digits is 186624, while the sum is 40.

The square root of 64983433 is about 8061.2302410984. The cubic root of 64983433 is about 402.0384132827.

The spelling of 64983433 in words is "sixty-four million, nine hundred eighty-three thousand, four hundred thirty-three".