10282921 has 4 divisors (see below), whose sum is σ = 11217744. Its totient is φ = 9348100.

The previous prime is 10282919. The next prime is 10282931. The reversal of 10282921 is 12928201.

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 10282921 - 2¹ = 10282919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10282931) 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, 467395 + ... + 467416.

It is an arithmetic number, because the mean of its divisors is an integer number (2804436).

Almost surely, 2^10282921 is an apocalyptic number.

10282921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10282921 is a deficient number, since it is larger than the sum of its proper divisors (934823).

10282921 is an equidigital number, since it uses as much as digits as its factorization.

10282921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934822.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 10282921 is about 3206.6993934574. The cubic root of 10282921 is about 217.4563861993.

The spelling of 10282921 in words is "ten million, two hundred eighty-two thousand, nine hundred twenty-one".