69800081 has 8 divisors (see below), whose sum is σ = 77003304. Its totient is φ = 62858880.

The previous prime is 69800077. The next prime is 69800083. The reversal of 69800081 is 18000896.

It can be written as a sum of positive squares in 4 ways, for example, as 6677056 + 63123025 = 2584^2 + 7945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69800081 - 2² = 69800077 is a prime.

It is a super-2 number, since 2×69800081² = 9744102615213122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69800083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64946 + ... + 66011.

It is an arithmetic number, because the mean of its divisors is an integer number (9625413).

Almost surely, 2^69800081 is an apocalyptic number.

It is an amenable number.

69800081 is a deficient number, since it is larger than the sum of its proper divisors (7203223).

69800081 is a wasteful number, since it uses less digits than its factorization.

69800081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131011.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 69800081 is about 8354.6442772867. The cubic root of 69800081 is about 411.7358114791.

The spelling of 69800081 in words is "sixty-nine million, eight hundred thousand, eighty-one".