10399789 has 2 divisors, whose sum is σ = 10399790. Its totient is φ = 10399788.

The previous prime is 10399757. The next prime is 10399793. The reversal of 10399789 is 98799301.

10399789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8555625 + 1844164 = 2925^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 10399789 - 2⁵ = 10399757 is a prime.

It is a super-2 number, since 2×10399789² = 216311222489042, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10399709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199894 + 5199895.

It is an arithmetic number, because the mean of its divisors is an integer number (5199895).

Almost surely, 2^10399789 is an apocalyptic number.

It is an amenable number.

10399789 is a deficient number, since it is larger than the sum of its proper divisors (1).

10399789 is an equidigital number, since it uses as much as digits as its factorization.

10399789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 10399789 is about 3224.8703849922. The cubic root of 10399789 is about 218.2771004234.

The spelling of 10399789 in words is "ten million, three hundred ninety-nine thousand, seven hundred eighty-nine".