10821097 has 4 divisors (see below), whose sum is σ = 12366976. Its totient is φ = 9275220.

The previous prime is 10821091. The next prime is 10821101. The reversal of 10821097 is 79012801.

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 10821097 - 2¹⁵ = 10788329 is a prime.

It is a super-2 number, since 2×10821097² = 234192280566818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10821091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772929 + ... + 772942.

It is an arithmetic number, because the mean of its divisors is an integer number (3091744).

Almost surely, 2^10821097 is an apocalyptic number.

It is an amenable number.

10821097 is a deficient number, since it is larger than the sum of its proper divisors (1545879).

10821097 is an equidigital number, since it uses as much as digits as its factorization.

10821097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545878.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 10821097 is about 3289.5435853626. The cubic root of 10821097 is about 221.1857259542.

Adding to 10821097 its reverse (79012801), we get a palindrome (89833898).

The spelling of 10821097 in words is "ten million, eight hundred twenty-one thousand, ninety-seven".