80989073 has 4 divisors (see below), whose sum is σ = 88351728. Its totient is φ = 73626420.

The previous prime is 80989067. The next prime is 80989079. The reversal of 80989073 is 37098908.

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 an interprime number because it is at equal distance from previous prime (80989067) and next prime (80989079).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80989073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80989079) 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, 3681311 + ... + 3681332.

It is an arithmetic number, because the mean of its divisors is an integer number (22087932).

Almost surely, 2^80989073 is an apocalyptic number.

It is an amenable number.

80989073 is a deficient number, since it is larger than the sum of its proper divisors (7362655).

80989073 is a wasteful number, since it uses less digits than its factorization.

80989073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362654.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 80989073 is about 8999.3929239699. The cubic root of 80989073 is about 432.6554140925.

It can be divided in two parts, 8098 and 9073, that added together give a palindrome (17171).

The spelling of 80989073 in words is "eighty million, nine hundred eighty-nine thousand, seventy-three".