80675789 has 4 divisors (see below), whose sum is σ = 84183456. Its totient is φ = 77168124.

The previous prime is 80675779. The next prime is 80675821. The reversal of 80675789 is 98757608.

It is a happy number.

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 80675789 - 2⁸ = 80675533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80675759) 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, 1753799 + ... + 1753844.

It is an arithmetic number, because the mean of its divisors is an integer number (21045864).

Almost surely, 2^80675789 is an apocalyptic number.

It is an amenable number.

80675789 is a deficient number, since it is larger than the sum of its proper divisors (3507667).

80675789 is a wasteful number, since it uses less digits than its factorization.

80675789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507666.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 80675789 is about 8981.9702181648. The cubic root of 80675789 is about 432.0968236478.

The spelling of 80675789 in words is "eighty million, six hundred seventy-five thousand, seven hundred eighty-nine".