65394078 has 16 divisors (see below), whose sum is σ = 131819520. Its totient is φ = 21626136.

The previous prime is 65394047. The next prime is 65394113. The reversal of 65394078 is 87049356.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 42148 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (8238720).

Almost surely, 2^65394078 is an apocalyptic number.

65394078 is an abundant number, since it is smaller than the sum of its proper divisors (66425442).

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

65394078 is a wasteful number, since it uses less digits than its factorization.

65394078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85951.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 65394078 is about 8086.6604973870. The cubic root of 65394078 is about 402.8834928908.

The spelling of 65394078 in words is "sixty-five million, three hundred ninety-four thousand, seventy-eight".