10357209 has 12 divisors (see below), whose sum is σ = 14991652. Its totient is φ = 6890400.

The previous prime is 10357201. The next prime is 10357211. The reversal of 10357209 is 90275301.

10357209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2985984 + 7371225 = 1728^2 + 2715^2 .

It is not a de Polignac number, because 10357209 - 2³ = 10357201 is a prime.

It is a super-3 number, since 3×10357209³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10357201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5079 + ... + 6819.

Almost surely, 2^10357209 is an apocalyptic number.

It is an amenable number.

10357209 is a deficient number, since it is larger than the sum of its proper divisors (4634443).

10357209 is a wasteful number, since it uses less digits than its factorization.

10357209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 10357209 is about 3218.2617979276. The cubic root of 10357209 is about 217.9787946155.

The spelling of 10357209 in words is "ten million, three hundred fifty-seven thousand, two hundred nine".