65869898 has 4 divisors (see below), whose sum is σ = 98804850. Its totient is φ = 32934948.

The previous prime is 65869897. The next prime is 65869919. The reversal of 65869898 is 89896856.

65869898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 22534009 = 6583^2 + 4747^2 .

It is a super-5 number, since 5×65869898⁵ (a number of 40 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (65869891) 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 as a sum of consecutive naturals, namely, 16467473 + ... + 16467476.

Almost surely, 2^65869898 is an apocalyptic number.

65869898 is a deficient number, since it is larger than the sum of its proper divisors (32934952).

65869898 is a wasteful number, since it uses less digits than its factorization.

65869898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32934951.

The product of its digits is 7464960, while the sum is 59.

The square root of 65869898 is about 8116.0272301170. The cubic root of 65869898 is about 403.8582852624.

The spelling of 65869898 in words is "sixty-five million, eight hundred sixty-nine thousand, eight hundred ninety-eight".