65989902 has 32 divisors (see below), whose sum is σ = 144353664. Its totient is φ = 19944800.

The previous prime is 65989879. The next prime is 65989919. The reversal of 65989902 is 20998956.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29752 + ... + 31892.

It is an arithmetic number, because the mean of its divisors is an integer number (4511052).

Almost surely, 2^65989902 is an apocalyptic number.

65989902 is an abundant number, since it is smaller than the sum of its proper divisors (78363762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65989902 is a wasteful number, since it uses less digits than its factorization.

65989902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 65989902 is about 8123.4168919242. The cubic root of 65989902 is about 404.1033906869.

The spelling of 65989902 in words is "sixty-five million, nine hundred eighty-nine thousand, nine hundred two".