78836126 has 4 divisors (see below), whose sum is σ = 118254192. Its totient is φ = 39418062.

The previous prime is 78836119. The next prime is 78836129. The reversal of 78836126 is 62163887.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78836129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19709030 + ... + 19709033.

It is an arithmetic number, because the mean of its divisors is an integer number (29563548).

Almost surely, 2^78836126 is an apocalyptic number.

78836126 is a deficient number, since it is larger than the sum of its proper divisors (39418066).

78836126 is a wasteful number, since it uses less digits than its factorization.

78836126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39418065.

The product of its digits is 96768, while the sum is 41.

The square root of 78836126 is about 8878.9709989390. The cubic root of 78836126 is about 428.7871465236.

The spelling of 78836126 in words is "seventy-eight million, eight hundred thirty-six thousand, one hundred twenty-six".