813602 has 12 divisors (see below), whose sum is σ = 1277430. Its totient is φ = 388608.

The previous prime is 813601. The next prime is 813613. The reversal of 813602 is 206318.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 89401 = 851^2 + 299^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 813602.

It is not an unprimeable number, because it can be changed into a prime (813601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674 + ... + 1442.

2⁸¹³⁶⁰² is an apocalyptic number.

813602 is a deficient number, since it is larger than the sum of its proper divisors (463828).

813602 is a wasteful number, since it uses less digits than its factorization.

813602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 813602 is about 901.9988913519. The cubic root of 813602 is about 93.3549468086.

The spelling of 813602 in words is "eight hundred thirteen thousand, six hundred two".