80817741 has 12 divisors (see below), whose sum is σ = 118651260. Its totient is φ = 52994880.

The previous prime is 80817727. The next prime is 80817743. The reversal of 80817741 is 14771808.

It can be written as a sum of positive squares in 2 ways, for example, as 36542025 + 44275716 = 6045^2 + 6654^2 .

It is not a de Polignac number, because 80817741 - 2⁷ = 80817613 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80817696 and 80817705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80817743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73056 + ... + 74153.

It is an arithmetic number, because the mean of its divisors is an integer number (9887605).

Almost surely, 2^80817741 is an apocalyptic number.

It is an amenable number.

80817741 is a deficient number, since it is larger than the sum of its proper divisors (37833519).

80817741 is a wasteful number, since it uses less digits than its factorization.

80817741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147276 (or 147273 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 80817741 is about 8989.8687977078. The cubic root of 80817741 is about 432.3501052055.

The spelling of 80817741 in words is "eighty million, eight hundred seventeen thousand, seven hundred forty-one".