80803697 has 4 divisors (see below), whose sum is σ = 87019380. Its totient is φ = 74588016.

The previous prime is 80803693. The next prime is 80803717. The reversal of 80803697 is 79630808.

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 27206656 + 53597041 = 5216^2 + 7321^2 .

It is a cyclic number.

It is not a de Polignac number, because 80803697 - 2² = 80803693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80803693) 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, 3107822 + ... + 3107847.

It is an arithmetic number, because the mean of its divisors is an integer number (21754845).

Almost surely, 2^80803697 is an apocalyptic number.

It is an amenable number.

80803697 is a deficient number, since it is larger than the sum of its proper divisors (6215683).

80803697 is a wasteful number, since it uses less digits than its factorization.

80803697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215682.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 80803697 is about 8989.0876622714. The cubic root of 80803697 is about 432.3250600585.

Subtracting from 80803697 its reverse (79630808), we obtain a square (1172889 = 1083²).

The spelling of 80803697 in words is "eighty million, eight hundred three thousand, six hundred ninety-seven".