80736727 has 4 divisors (see below), whose sum is σ = 81873936. Its totient is φ = 79599520.

The previous prime is 80736661. The next prime is 80736731. The reversal of 80736727 is 72763708.

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

It is not a de Polignac number, because 80736727 - 2¹⁹ = 80212439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80736727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80736737) 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, 568498 + ... + 568639.

It is an arithmetic number, because the mean of its divisors is an integer number (20468484).

Almost surely, 2^80736727 is an apocalyptic number.

80736727 is a deficient number, since it is larger than the sum of its proper divisors (1137209).

80736727 is a wasteful number, since it uses less digits than its factorization.

80736727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137208.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 80736727 is about 8985.3618179793. The cubic root of 80736727 is about 432.2055902293.

The spelling of 80736727 in words is "eighty million, seven hundred thirty-six thousand, seven hundred twenty-seven".