80801797 has 4 divisors (see below), whose sum is σ = 80819776. Its totient is φ = 80783820.

The previous prime is 80801771. The next prime is 80801849. The reversal of 80801797 is 79710808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80801797 - 2²³ = 72413189 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 (80808797) 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, 4468 + ... + 13474.

It is an arithmetic number, because the mean of its divisors is an integer number (20204944).

Almost surely, 2^80801797 is an apocalyptic number.

It is an amenable number.

80801797 is a deficient number, since it is larger than the sum of its proper divisors (17979).

80801797 is an equidigital number, since it uses as much as digits as its factorization.

80801797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17978.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 80801797 is about 8988.9819779550. The cubic root of 80801797 is about 432.3216715004.

The spelling of 80801797 in words is "eighty million, eight hundred one thousand, seven hundred ninety-seven".