10287321 has 8 divisors (see below), whose sum is σ = 14963424. Its totient is φ = 6234720.

The previous prime is 10287307. The next prime is 10287337. The reversal of 10287321 is 12378201.

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

It is a de Polignac number, because none of the positive numbers 2^k-10287321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10287291 and 10287300.

It is not an unprimeable number, because it can be changed into a prime (10287391) 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, 155836 + ... + 155901.

It is an arithmetic number, because the mean of its divisors is an integer number (1870428).

Almost surely, 2^10287321 is an apocalyptic number.

10287321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10287321 is a deficient number, since it is larger than the sum of its proper divisors (4676103).

10287321 is a wasteful number, since it uses less digits than its factorization.

10287321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311751.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 10287321 is about 3207.3853837667. The cubic root of 10287321 is about 217.4873978694.

The spelling of 10287321 in words is "ten million, two hundred eighty-seven thousand, three hundred twenty-one".