11309706 has 28 divisors (see below), whose sum is σ = 25438482. Its totient is φ = 3769416.

The previous prime is 11309689. The next prime is 11309707. The reversal of 11309706 is 60790311.

It can be written as a sum of positive squares in only one way, i.e., 8037225 + 3272481 = 2835^2 + 1809^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11309706.

It is not an unprimeable number, because it can be changed into a prime (11309707) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2421 + ... + 5336.

Almost surely, 2^11309706 is an apocalyptic number.

11309706 is an abundant number, since it is smaller than the sum of its proper divisors (14128776).

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

11309706 is an frugal number, since it uses more digits than its factorization.

11309706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777 (or 7762 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 11309706 is about 3362.9906333500. The cubic root of 11309706 is about 224.4659333265.

The spelling of 11309706 in words is "eleven million, three hundred nine thousand, seven hundred six".