10091761 has 4 divisors (see below), whose sum is σ = 10685412. Its totient is φ = 9498112.

The previous prime is 10091759. The next prime is 10091789. The reversal of 10091761 is 16719001.

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 6553600 + 3538161 = 2560^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 10091761 - 2¹ = 10091759 is a prime.

It is a super-2 number, since 2×10091761² = 203687280162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10091161) 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, 296800 + ... + 296833.

It is an arithmetic number, because the mean of its divisors is an integer number (2671353).

Almost surely, 2^10091761 is an apocalyptic number.

It is an amenable number.

10091761 is a deficient number, since it is larger than the sum of its proper divisors (593651).

10091761 is an equidigital number, since it uses as much as digits as its factorization.

10091761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593650.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 10091761 is about 3176.7532167293. The cubic root of 10091761 is about 216.1004405419.

The spelling of 10091761 in words is "ten million, ninety-one thousand, seven hundred sixty-one".