10179809 has 2 divisors, whose sum is σ = 10179810. Its totient is φ = 10179808.

The previous prime is 10179803. The next prime is 10179817. The reversal of 10179809 is 90897101.

10179809 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., 6838225 + 3341584 = 2615^2 + 1828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10179809 is a prime.

It is a super-2 number, since 2×10179809² = 207257022552962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10179803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5089904 + 5089905.

It is an arithmetic number, because the mean of its divisors is an integer number (5089905).

Almost surely, 2^10179809 is an apocalyptic number.

It is an amenable number.

10179809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10179809 is an equidigital number, since it uses as much as digits as its factorization.

10179809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 10179809 is about 3190.5812949994. The cubic root of 10179809 is about 216.7270950450.

The spelling of 10179809 in words is "ten million, one hundred seventy-nine thousand, eight hundred nine".