78746055 has 16 divisors (see below), whose sum is σ = 127294944. Its totient is φ = 41564160.

The previous prime is 78746033. The next prime is 78746071. The reversal of 78746055 is 55064787.

It is not a de Polignac number, because 78746055 - 2²⁵ = 45191623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78745998 and 78746016.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 25606 + ... + 28515.

It is an arithmetic number, because the mean of its divisors is an integer number (7955934).

Almost surely, 2^78746055 is an apocalyptic number.

78746055 is a deficient number, since it is larger than the sum of its proper divisors (48548889).

78746055 is a wasteful number, since it uses less digits than its factorization.

78746055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54226.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 78746055 is about 8873.8973962966. The cubic root of 78746055 is about 428.6237865397.

The spelling of 78746055 in words is "seventy-eight million, seven hundred forty-six thousand, fifty-five".