10812047 has 4 divisors (see below), whose sum is σ = 11282160. Its totient is φ = 10341936.

The previous prime is 10812031. The next prime is 10812059. The reversal of 10812047 is 74021801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10812047 - 2⁴ = 10812031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 470089 = 10812047 / (1 + 0 + 8 + 1 + 2 + 0 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10814047) 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, 235022 + ... + 235067.

It is an arithmetic number, because the mean of its divisors is an integer number (2820540).

Almost surely, 2^10812047 is an apocalyptic number.

10812047 is a deficient number, since it is larger than the sum of its proper divisors (470113).

10812047 is an equidigital number, since it uses as much as digits as its factorization.

10812047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470112.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 10812047 is about 3288.1677268655. The cubic root of 10812047 is about 221.1240473919.

Adding to 10812047 its reverse (74021801), we get a palindrome (84833848).

The spelling of 10812047 in words is "ten million, eight hundred twelve thousand, forty-seven".