10280813 has 2 divisors, whose sum is σ = 10280814. Its totient is φ = 10280812.

The previous prime is 10280807. The next prime is 10280821. The reversal of 10280813 is 31808201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9815689 + 465124 = 3133^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 10280813 - 2⁴ = 10280797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10280833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5140406 + 5140407.

It is an arithmetic number, because the mean of its divisors is an integer number (5140407).

Almost surely, 2^10280813 is an apocalyptic number.

It is an amenable number.

10280813 is a deficient number, since it is larger than the sum of its proper divisors (1).

10280813 is an equidigital number, since it uses as much as digits as its factorization.

10280813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 10280813 is about 3206.3706897363. The cubic root of 10280813 is about 217.4415256556.

The spelling of 10280813 in words is "ten million, two hundred eighty thousand, eight hundred thirteen".