10287813 has 8 divisors (see below), whose sum is σ = 14087968. Its totient is φ = 6673104.

The previous prime is 10287787. The next prime is 10287821. The reversal of 10287813 is 31878201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10287813 - 2⁶ = 10287749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10287853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46231 + ... + 46452.

It is an arithmetic number, because the mean of its divisors is an integer number (1760996).

Almost surely, 2^10287813 is an apocalyptic number.

It is an amenable number.

10287813 is a deficient number, since it is larger than the sum of its proper divisors (3800155).

10287813 is an equidigital number, since it uses as much as digits as its factorization.

10287813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92723.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 10287813 is about 3207.4620808359. The cubic root of 10287813 is about 217.4908649882.

The spelling of 10287813 in words is "ten million, two hundred eighty-seven thousand, eight hundred thirteen".