78761995 has 8 divisors (see below), whose sum is σ = 101784816. Its totient is φ = 58162656.

The previous prime is 78761981. The next prime is 78762001. The reversal of 78761995 is 59916787.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78761995 - 2²⁵ = 45207563 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 7 ways as a sum of consecutive naturals, for example, 605797 + ... + 605926.

It is an arithmetic number, because the mean of its divisors is an integer number (12723102).

Almost surely, 2^78761995 is an apocalyptic number.

78761995 is a deficient number, since it is larger than the sum of its proper divisors (23022821).

78761995 is a wasteful number, since it uses less digits than its factorization.

78761995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211741.

The product of its digits is 952560, while the sum is 52.

The square root of 78761995 is about 8874.7954906015. The cubic root of 78761995 is about 428.6527056698.

The spelling of 78761995 in words is "seventy-eight million, seven hundred sixty-one thousand, nine hundred ninety-five".