10019689 has 2 divisors, whose sum is σ = 10019690. Its totient is φ = 10019688.

The previous prime is 10019671. The next prime is 10019717. The reversal of 10019689 is 98691001.

10019689 is digitally balanced in base 2 and base 3, because in such bases 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., 8037225 + 1982464 = 2835^2 + 1408^2 .

It is a cyclic number.

It is not a de Polignac number, because 10019689 - 2⁵ = 10019657 is a prime.

It is not a weakly prime, because it can be changed into another prime (10019609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5009844 + 5009845.

It is an arithmetic number, because the mean of its divisors is an integer number (5009845).

Almost surely, 2^10019689 is an apocalyptic number.

It is an amenable number.

10019689 is a deficient number, since it is larger than the sum of its proper divisors (1).

10019689 is an equidigital number, since it uses as much as digits as its factorization.

10019689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 10019689 is about 3165.3892335699. The cubic root of 10019689 is about 215.5847718554.

The spelling of 10019689 in words is "ten million, nineteen thousand, six hundred eighty-nine".