11172730 has 8 divisors (see below), whose sum is σ = 20110932. Its totient is φ = 4469088.

The previous prime is 11172701. The next prime is 11172731. The reversal of 11172730 is 3727111.

It can be written as a sum of positive squares in 2 ways, for example, as 10569001 + 603729 = 3251^2 + 777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11172731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558627 + ... + 558646.

Almost surely, 2^11172730 is an apocalyptic number.

11172730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11172730 is a deficient number, since it is larger than the sum of its proper divisors (8938202).

11172730 is a wasteful number, since it uses less digits than its factorization.

11172730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117280.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 11172730 is about 3342.5633875815. The cubic root of 11172730 is about 223.5560536519.

Adding to 11172730 its reverse (3727111), we get a palindrome (14899841).

The spelling of 11172730 in words is "eleven million, one hundred seventy-two thousand, seven hundred thirty".