11780802 has 60 divisors (see below), whose sum is σ = 29063958. Its totient is φ = 3564000.

The previous prime is 11780801. The next prime is 11780819. The reversal of 11780802 is 20808711.

It can be written as a sum of positive squares in only one way, i.e., 8242641 + 3538161 = 2871^2 + 1881^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11780801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 19302 + ... + 19902.

Almost surely, 2^11780802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11780802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14531979).

11780802 is an abundant number, since it is smaller than the sum of its proper divisors (17283156).

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

11780802 is a wasteful number, since it uses less digits than its factorization.

11780802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 11780802 is about 3432.3172930252. The cubic root of 11780802 is about 227.5402786631.

The spelling of 11780802 in words is "eleven million, seven hundred eighty thousand, eight hundred two".