890079 has 4 divisors (see below), whose sum is σ = 1186776. Its totient is φ = 593384.

The previous prime is 890063. The next prime is 890083. The reversal of 890079 is 970098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 890079 - 2⁴ = 890063 is a prime.

It is a D-number.

890079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (892079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148344 + ... + 148349.

It is an arithmetic number, because the mean of its divisors is an integer number (296694).

2⁸⁹⁰⁰⁷⁹ is an apocalyptic number.

890079 is a deficient number, since it is larger than the sum of its proper divisors (296697).

890079 is a wasteful number, since it uses less digits than its factorization.

890079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296696.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 890079 is about 943.4399821928. The cubic root of 890079 is about 96.1928631482.

The spelling of 890079 in words is "eight hundred ninety thousand, seventy-nine".