78006726 has 120 divisors (see below), whose sum is σ = 210551616. Its totient is φ = 21500640.

The previous prime is 78006707. The next prime is 78006737. The reversal of 78006726 is 62760087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 245920 + ... + 246236.

Almost surely, 2^78006726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78006726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105275808).

78006726 is an abundant number, since it is smaller than the sum of its proper divisors (132544890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78006726 is a wasteful number, since it uses less digits than its factorization.

78006726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 78006726 is about 8832.1416428859. The cubic root of 78006726 is about 427.2781489716.

The spelling of 78006726 in words is "seventy-eight million, six thousand, seven hundred twenty-six".