890079023513 has 2 divisors, whose sum is σ = 890079023514. Its totient is φ = 890079023512.

The previous prime is 890079023507. The next prime is 890079023579. The reversal of 890079023513 is 315320970098.

890079023513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851840394304 + 38238629209 = 922952^2 + 195547^2 .

It is a cyclic number.

It is not a de Polignac number, because 890079023513 - 2⁸ = 890079023257 is a prime.

It is a super-2 number, since 2×890079023513² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (890079023593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445039511756 + 445039511757.

It is an arithmetic number, because the mean of its divisors is an integer number (445039511757).

Almost surely, 2^890079023513 is an apocalyptic number.

It is an amenable number.

890079023513 is a deficient number, since it is larger than the sum of its proper divisors (1).

890079023513 is an equidigital number, since it uses as much as digits as its factorization.

890079023513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 890079023513 in words is "eight hundred ninety billion, seventy-nine million, twenty-three thousand, five hundred thirteen".