65489398 has 8 divisors (see below), whose sum is σ = 105790608. Its totient is φ = 30225864.

The previous prime is 65489393. The next prime is 65489399. The reversal of 65489398 is 89398456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×65489398² = 8577722500804808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65489393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259386 + ... + 1259437.

It is an arithmetic number, because the mean of its divisors is an integer number (13223826).

Almost surely, 2^65489398 is an apocalyptic number.

65489398 is a deficient number, since it is larger than the sum of its proper divisors (40301210).

65489398 is a wasteful number, since it uses less digits than its factorization.

65489398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518838.

The product of its digits is 1866240, while the sum is 52.

The square root of 65489398 is about 8092.5520078650. The cubic root of 65489398 is about 403.0791487863.

The spelling of 65489398 in words is "sixty-five million, four hundred eighty-nine thousand, three hundred ninety-eight".