890513 has 4 divisors (see below), whose sum is σ = 959028. Its totient is φ = 822000.

The previous prime is 890501. The next prime is 890531. The reversal of 890513 is 315098.

890513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 824464 = 257^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 890513 - 2¹⁰ = 889489 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 (890543) 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, 34238 + ... + 34263.

It is an arithmetic number, because the mean of its divisors is an integer number (239757).

2⁸⁹⁰⁵¹³ is an apocalyptic number.

It is an amenable number.

890513 is a deficient number, since it is larger than the sum of its proper divisors (68515).

890513 is a wasteful number, since it uses less digits than its factorization.

890513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68514.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 890513 is about 943.6699634936. The cubic root of 890513 is about 96.2084950637.

The spelling of 890513 in words is "eight hundred ninety thousand, five hundred thirteen".