78328595 has 4 divisors (see below), whose sum is σ = 93994320. Its totient is φ = 62662872.

The previous prime is 78328553. The next prime is 78328603. The reversal of 78328595 is 59582387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59582387 = 263 ⋅226549.

It is a cyclic number.

It is not a de Polignac number, because 78328595 - 2⁶ = 78328531 is a prime.

It is a super-2 number, since 2×78328595² = 12270737589348050, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7832855 + ... + 7832864.

It is an arithmetic number, because the mean of its divisors is an integer number (23498580).

Almost surely, 2^78328595 is an apocalyptic number.

78328595 is a deficient number, since it is larger than the sum of its proper divisors (15665725).

78328595 is a wasteful number, since it uses less digits than its factorization.

78328595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15665724.

The product of its digits is 604800, while the sum is 47.

The square root of 78328595 is about 8850.3443435835. The cubic root of 78328595 is about 427.8650166087.

The spelling of 78328595 in words is "seventy-eight million, three hundred twenty-eight thousand, five hundred ninety-five".