78000395 has 32 divisors (see below), whose sum is σ = 105636096. Its totient is φ = 54806400.

The previous prime is 78000361. The next prime is 78000407. The reversal of 78000395 is 59300087.

It is not a de Polignac number, because 78000395 - 2⁶ = 78000331 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224612 + ... + 224958.

It is an arithmetic number, because the mean of its divisors is an integer number (3301128).

Almost surely, 2^78000395 is an apocalyptic number.

78000395 is a deficient number, since it is larger than the sum of its proper divisors (27635701).

78000395 is a wasteful number, since it uses less digits than its factorization.

78000395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 78000395 is about 8831.7832287710. The cubic root of 78000395 is about 427.2665894080.

The spelling of 78000395 in words is "seventy-eight million, three hundred ninety-five", and thus it is an aban number.