11197950 has 24 divisors (see below), whose sum is σ = 27771288. Its totient is φ = 2986080.

The previous prime is 11197943. The next prime is 11197957. The reversal of 11197950 is 5979111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11197943) and next prime (11197957).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11197957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37177 + ... + 37476.

It is an arithmetic number, because the mean of its divisors is an integer number (1157137).

Almost surely, 2^11197950 is an apocalyptic number.

11197950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11197950 is an abundant number, since it is smaller than the sum of its proper divisors (16573338).

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

11197950 is a wasteful number, since it uses less digits than its factorization.

11197950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74668 (or 74663 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 33.

The square root of 11197950 is about 3346.3338147890. Note that the first 3 decimals coincide. The cubic root of 11197950 is about 223.7241369147.

The spelling of 11197950 in words is "eleven million, one hundred ninety-seven thousand, nine hundred fifty".