80740117 has 4 divisors (see below), whose sum is σ = 81846220. Its totient is φ = 79634016.

The previous prime is 80740091. The next prime is 80740129. The reversal of 80740117 is 71104708.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 61999876 = 4329^2 + 7874^2 .

It is a cyclic number.

It is not a de Polignac number, because 80740117 - 2¹¹ = 80738069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80740417) 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, 552942 + ... + 553087.

It is an arithmetic number, because the mean of its divisors is an integer number (20461555).

Almost surely, 2^80740117 is an apocalyptic number.

It is an amenable number.

80740117 is a deficient number, since it is larger than the sum of its proper divisors (1106103).

80740117 is a wasteful number, since it uses less digits than its factorization.

80740117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106102.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 80740117 is about 8985.5504561490. The cubic root of 80740117 is about 432.2116393410.

The spelling of 80740117 in words is "eighty million, seven hundred forty thousand, one hundred seventeen".