65298078 has 12 divisors (see below), whose sum is σ = 141479208. Its totient is φ = 21766020.

The previous prime is 65298031. The next prime is 65298091. The reversal of 65298078 is 87089256.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1813818 + ... + 1813853.

It is an arithmetic number, because the mean of its divisors is an integer number (11789934).

Almost surely, 2^65298078 is an apocalyptic number.

65298078 is an abundant number, since it is smaller than the sum of its proper divisors (76181130).

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

65298078 is a wasteful number, since it uses less digits than its factorization.

65298078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627679 (or 3627676 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 65298078 is about 8080.7226162021. The cubic root of 65298078 is about 402.6862489502.

The spelling of 65298078 in words is "sixty-five million, two hundred ninety-eight thousand, seventy-eight".