812012471 has 8 divisors (see below), whose sum is σ = 836150784. Its totient is φ = 787989600.

The previous prime is 812012449. The next prime is 812012483. The reversal of 812012471 is 174210218.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812012471 is a prime.

It is a super-3 number, since 3×812012471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 812012471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812012431) 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, 14480 + ... + 42821.

It is an arithmetic number, because the mean of its divisors is an integer number (104518848).

Almost surely, 2^812012471 is an apocalyptic number.

812012471 is a deficient number, since it is larger than the sum of its proper divisors (24138313).

812012471 is a wasteful number, since it uses less digits than its factorization.

812012471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57721.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 812012471 is about 28495.8325198616. The cubic root of 812012471 is about 932.9411152026.

Adding to 812012471 its reverse (174210218), we get a palindrome (986222689).

The spelling of 812012471 in words is "eight hundred twelve million, twelve thousand, four hundred seventy-one".