10787281 has 4 divisors (see below), whose sum is σ = 11038192. Its totient is φ = 10536372.

The previous prime is 10787251. The next prime is 10787291. The reversal of 10787281 is 18278701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10787281 - 2¹³ = 10779089 is a prime.

It is a super-2 number, since 2×10787281² = 232730862745922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10787221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125391 + ... + 125476.

It is an arithmetic number, because the mean of its divisors is an integer number (2759548).

Almost surely, 2^10787281 is an apocalyptic number.

It is an amenable number.

10787281 is a deficient number, since it is larger than the sum of its proper divisors (250911).

10787281 is an equidigital number, since it uses as much as digits as its factorization.

10787281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250910.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 10787281 is about 3284.3996407258. The cubic root of 10787281 is about 220.9550832462.

The spelling of 10787281 in words is "ten million, seven hundred eighty-seven thousand, two hundred eighty-one".