11097972 has 30 divisors (see below), whose sum is σ = 29013138. Its totient is φ = 3699216.

The previous prime is 11097953. The next prime is 11097997. The reversal of 11097972 is 27979011.

It can be written as a sum of positive squares in only one way, i.e., 7986276 + 3111696 = 2826^2 + 1764^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16803 + ... + 17450.

Almost surely, 2^11097972 is an apocalyptic number.

11097972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11097972 is an abundant number, since it is smaller than the sum of its proper divisors (17915166).

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

11097972 is a wasteful number, since it uses less digits than its factorization.

11097972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34269 (or 34258 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 11097972 is about 3331.3618836746. The cubic root of 11097972 is about 223.0563244616.

The spelling of 11097972 in words is "eleven million, ninety-seven thousand, nine hundred seventy-two".