813412 has 6 divisors (see below), whose sum is σ = 1423478. Its totient is φ = 406704.

The previous prime is 813401. The next prime is 813419. The reversal of 813412 is 214318.

It can be written as a sum of positive squares in only one way, i.e., 481636 + 331776 = 694^2 + 576^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 813412.

It is not an unprimeable number, because it can be changed into a prime (813419) by changing a digit.

813412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101673 + ... + 101680.

2⁸¹³⁴¹² is an apocalyptic number.

It is an amenable number.

813412 is a deficient number, since it is larger than the sum of its proper divisors (610066).

813412 is a wasteful number, since it uses less digits than its factorization.

813412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203357 (or 203355 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 813412 is about 901.8935635650. The cubic root of 813412 is about 93.3476792007.

Adding to 813412 its product of digits (192), we get a square (813604 = 902²).

It can be divided in two parts, 813 and 412, that added together give a triangular number (1225 = T₄₉).

The spelling of 813412 in words is "eight hundred thirteen thousand, four hundred twelve".