64489239 has 6 divisors (see below), whose sum is σ = 93151136. Its totient is φ = 42992820.

The previous prime is 64489199. The next prime is 64489241. The reversal of 64489239 is 93298446.

64489239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64489239 - 2¹⁷ = 64358167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64489194 and 64489203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64484239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3582727 + ... + 3582744.

Almost surely, 2^64489239 is an apocalyptic number.

64489239 is a deficient number, since it is larger than the sum of its proper divisors (28661897).

64489239 is a wasteful number, since it uses less digits than its factorization.

64489239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165477 (or 7165474 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 64489239 is about 8030.5192235621. The cubic root of 64489239 is about 401.0166617248.

The spelling of 64489239 in words is "sixty-four million, four hundred eighty-nine thousand, two hundred thirty-nine".