11172620 has 24 divisors (see below), whose sum is σ = 23699088. Its totient is φ = 4424000.

The previous prime is 11172613. The next prime is 11172659. The reversal of 11172620 is 2627111.

11172620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11172592 and 11172601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (987462).

Almost surely, 2^11172620 is an apocalyptic number.

11172620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11172620 is an abundant number, since it is smaller than the sum of its proper divisors (12526468).

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

11172620 is a wasteful number, since it uses less digits than its factorization.

11172620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641 (or 5639 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 11172620 is about 3342.5469331036. The cubic root of 11172620 is about 223.5553199832. Note that the first 3 decimals are identical.

Adding to 11172620 its reverse (2627111), we get a palindrome (13799731).

The spelling of 11172620 in words is "eleven million, one hundred seventy-two thousand, six hundred twenty".