80838693 has 12 divisors (see below), whose sum is σ = 125749260. Its totient is φ = 49746816.

The previous prime is 80838679. The next prime is 80838697. The reversal of 80838693 is 39683808.

It can be written as a sum of positive squares in 2 ways, for example, as 5461569 + 75377124 = 2337^2 + 8682^2 .

It is not a de Polignac number, because 80838693 - 2⁹ = 80838181 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80838697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345348 + ... + 345581.

It is an arithmetic number, because the mean of its divisors is an integer number (10479105).

Almost surely, 2^80838693 is an apocalyptic number.

It is an amenable number.

80838693 is a deficient number, since it is larger than the sum of its proper divisors (44910567).

80838693 is a wasteful number, since it uses less digits than its factorization.

80838693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690948 (or 690945 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 80838693 is about 8991.0340339696. The cubic root of 80838693 is about 432.3874642333.

The spelling of 80838693 in words is "eighty million, eight hundred thirty-eight thousand, six hundred ninety-three".