11087973 has 24 divisors (see below), whose sum is σ = 17443608. Its totient is φ = 6746112.

The previous prime is 11087969. The next prime is 11087977. The reversal of 11087973 is 37978011.

It is an interprime number because it is at equal distance from previous prime (11087969) and next prime (11087977).

It can be written as a sum of positive squares in 4 ways, for example, as 1979649 + 9108324 = 1407^2 + 3018^2 .

It is not a de Polignac number, because 11087973 - 2² = 11087969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11087977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10861 + ... + 11837.

It is an arithmetic number, because the mean of its divisors is an integer number (726817).

Almost surely, 2^11087973 is an apocalyptic number.

11087973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11087973 is a deficient number, since it is larger than the sum of its proper divisors (6355635).

11087973 is a wasteful number, since it uses less digits than its factorization.

11087973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 11087973 is about 3329.8608079017. The cubic root of 11087973 is about 222.9893149110.

The spelling of 11087973 in words is "eleven million, eighty-seven thousand, nine hundred seventy-three".