80045617 has 4 divisors (see below), whose sum is σ = 80464896. Its totient is φ = 79626340.

The previous prime is 80045591. The next prime is 80045663. The reversal of 80045617 is 71654008.

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.

It is a cyclic number.

It is not a de Polignac number, because 80045617 - 2¹⁹ = 79521329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80045677) 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, 209353 + ... + 209734.

It is an arithmetic number, because the mean of its divisors is an integer number (20116224).

Almost surely, 2^80045617 is an apocalyptic number.

It is an amenable number.

80045617 is a deficient number, since it is larger than the sum of its proper divisors (419279).

80045617 is a wasteful number, since it uses less digits than its factorization.

80045617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419278.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80045617 is about 8946.8216144059. The cubic root of 80045617 is about 430.9688214841.

The spelling of 80045617 in words is "eighty million, forty-five thousand, six hundred seventeen".