78736106 has 8 divisors (see below), whose sum is σ = 118787364. Its totient is φ = 39140320.

The previous prime is 78736103. The next prime is 78736117. The reversal of 78736106 is 60163787.

It can be written as a sum of positive squares in 2 ways, for example, as 57896881 + 20839225 = 7609^2 + 4565^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78736106.

It is not an unprimeable number, because it can be changed into a prime (78736103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113435 + ... + 114126.

Almost surely, 2^78736106 is an apocalyptic number.

78736106 is a deficient number, since it is larger than the sum of its proper divisors (40051258).

78736106 is a wasteful number, since it uses less digits than its factorization.

78736106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227736.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78736106 is about 8873.3368019027. The cubic root of 78736106 is about 428.6057345977.

The spelling of 78736106 in words is "seventy-eight million, seven hundred thirty-six thousand, one hundred six".