80736726 has 32 divisors (see below), whose sum is σ = 184884480. Its totient is φ = 23024736.

The previous prime is 80736661. The next prime is 80736731. The reversal of 80736726 is 62763708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26220 + ... + 29136.

It is an arithmetic number, because the mean of its divisors is an integer number (5777640).

Almost surely, 2^80736726 is an apocalyptic number.

80736726 is an abundant number, since it is smaller than the sum of its proper divisors (104147754).

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

80736726 is a wasteful number, since it uses less digits than its factorization.

80736726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 80736726 is about 8985.3617623332. The cubic root of 80736726 is about 432.2055884448.

It can be divided in two parts, 80736 and 726, that multiplied together give a square (58614336 = 7656²).

The spelling of 80736726 in words is "eighty million, seven hundred thirty-six thousand, seven hundred twenty-six".