80011009 has 8 divisors (see below), whose sum is σ = 86244480. Its totient is φ = 73788816.

The previous prime is 80010991. The next prime is 80011013. The reversal of 80011009 is 90011008.

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 80011009 - 2¹⁷ = 79879937 is a prime.

It is a super-2 number, since 2×80011009² = 12803523122396162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80011409) 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, 17262 + ... + 21400.

It is an arithmetic number, because the mean of its divisors is an integer number (10780560).

Almost surely, 2^80011009 is an apocalyptic number.

It is an amenable number.

80011009 is a deficient number, since it is larger than the sum of its proper divisors (6233471).

80011009 is a wasteful number, since it uses less digits than its factorization.

80011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 80011009 is about 8944.8873106373. The cubic root of 80011009 is about 430.9067022427.

Subtracting 80011009 from its reverse (90011008), we obtain a palindrome (9999999).

The spelling of 80011009 in words is "eighty million, eleven thousand, nine".