80838081 has 33 divisors (see below), whose sum is σ = 124622211. Its totient is φ = 52435512.

The previous prime is 80838071. The next prime is 80838097. The reversal of 80838081 is 18083808.

The square root of 80838081 is 8991.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72335025 + 8503056 = 8505^2 + 2916^2 .

It is not a de Polignac number, because 80838081 - 2¹¹ = 80836033 is a prime.

It is a super-2 number, since 2×80838081² = 13069590679525122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80838061) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 2184795 + ... + 2184831.

Almost surely, 2^80838081 is an apocalyptic number.

80838081 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80838081 is the 8991-st square number.

80838081 is the 4496-th centered octagonal number.

It is an amenable number.

80838081 is a deficient number, since it is larger than the sum of its proper divisors (43784130).

80838081 is an frugal number, since it uses more digits than its factorization.

80838081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The cubic root of 80838081 is about 432.3863730818.

Multiplying 80838081 by its sum of digits (36), we get a square (2910170916 = 53946²).

The spelling of 80838081 in words is "eighty million, eight hundred thirty-eight thousand, eighty-one".