78896985 has 16 divisors (see below), whose sum is σ = 127417536. Its totient is φ = 41684288.

The previous prime is 78896963. The next prime is 78896999. The reversal of 78896985 is 58969887.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78896985 - 2¹⁴ = 78880601 is a prime.

It is a super-3 number, since 3×78896985³ (a number of 25 digits) contains 333 as substring.

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, 22974 + ... + 26183.

It is an arithmetic number, because the mean of its divisors is an integer number (7963596).

Almost surely, 2^78896985 is an apocalyptic number.

It is an amenable number.

78896985 is a deficient number, since it is larger than the sum of its proper divisors (48520551).

78896985 is a wasteful number, since it uses less digits than its factorization.

78896985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49272.

The product of its digits is 8709120, while the sum is 60.

The square root of 78896985 is about 8882.3974804103. The cubic root of 78896985 is about 428.8974548563.

The spelling of 78896985 in words is "seventy-eight million, eight hundred ninety-six thousand, nine hundred eighty-five".