10081669 has 4 divisors (see below), whose sum is σ = 10857196. Its totient is φ = 9306144.

The previous prime is 10081661. The next prime is 10081679. The reversal of 10081669 is 96618001.

It is a happy number.

10081669 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 semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5616900 + 4464769 = 2370^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 10081669 - 2³ = 10081661 is a prime.

It is a super-2 number, since 2×10081669² = 203280099651122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10081669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10081661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387744 + ... + 387769.

It is an arithmetic number, because the mean of its divisors is an integer number (2714299).

Almost surely, 2^10081669 is an apocalyptic number.

It is an amenable number.

10081669 is a deficient number, since it is larger than the sum of its proper divisors (775527).

10081669 is an equidigital number, since it uses as much as digits as its factorization.

10081669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775526.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10081669 is about 3175.1644051923. The cubic root of 10081669 is about 216.0283813301.

The spelling of 10081669 in words is "ten million, eighty-one thousand, six hundred sixty-nine".