65496389 has 12 divisors (see below), whose sum is σ = 76488300. Its totient is φ = 55919808.

The previous prime is 65496349. The next prime is 65496391. The reversal of 65496389 is 98369456.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 57259489 = 2870^2 + 7567^2 .

It is a de Polignac number, because none of the positive numbers 2^k-65496389 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65496349) 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, 10697 + ... + 15665.

It is an arithmetic number, because the mean of its divisors is an integer number (6374025).

Almost surely, 2^65496389 is an apocalyptic number.

It is an amenable number.

65496389 is a deficient number, since it is larger than the sum of its proper divisors (10991911).

65496389 is a wasteful number, since it uses less digits than its factorization.

65496389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252 (or 5245 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 65496389 is about 8092.9839367195. The cubic root of 65496389 is about 403.0934911895.

The spelling of 65496389 in words is "sixty-five million, four hundred ninety-six thousand, three hundred eighty-nine".