10812979 has 4 divisors (see below), whose sum is σ = 10961176. Its totient is φ = 10664784.

The previous prime is 10812943. The next prime is 10812983. The reversal of 10812979 is 97921801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97921801 = 19 ⋅5153779.

It is a cyclic number.

It is not a de Polignac number, because 10812979 - 2¹⁷ = 10681907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10812079) 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, 73989 + ... + 74134.

It is an arithmetic number, because the mean of its divisors is an integer number (2740294).

Almost surely, 2^10812979 is an apocalyptic number.

10812979 is a deficient number, since it is larger than the sum of its proper divisors (148197).

10812979 is an equidigital number, since it uses as much as digits as its factorization.

10812979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148196.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 10812979 is about 3288.3094440761. The cubic root of 10812979 is about 221.1304008509.

The spelling of 10812979 in words is "ten million, eight hundred twelve thousand, nine hundred seventy-nine".