788436 has 54 divisors (see below), whose sum is σ = 2202746. Its totient is φ = 237600.

The previous prime is 788429. The next prime is 788449. The reversal of 788436 is 634887.

It can be written as a sum of positive squares in only one way, i.e., 435600 + 352836 = 660^2 + 594^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 788436.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 788436.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4266 + ... + 4446.

2⁷⁸⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 788436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101373).

788436 is an abundant number, since it is smaller than the sum of its proper divisors (1414310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

788436 is a wasteful number, since it uses less digits than its factorization.

788436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 197 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 788436 is about 887.9391871069. The cubic root of 788436 is about 92.3823095385.

The spelling of 788436 in words is "seven hundred eighty-eight thousand, four hundred thirty-six".