13087373 has 4 divisors (see below), whose sum is σ = 14094108. Its totient is φ = 12080640.

The previous prime is 13087369. The next prime is 13087379. The reversal of 13087373 is 37378031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4313929 + 8773444 = 2077^2 + 2962^2 .

It is not a de Polignac number, because 13087373 - 2² = 13087369 is a prime.

It is a super-2 number, since 2×13087373² = 342558664082258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087379) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 503348 + ... + 503373.

It is an arithmetic number, because the mean of its divisors is an integer number (3523527).

Almost surely, 2^13087373 is an apocalyptic number.

13087373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13087373 is a deficient number, since it is larger than the sum of its proper divisors (1006735).

13087373 is a wasteful number, since it uses less digits than its factorization.

13087373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006734.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 13087373 is about 3617.6474399809. The cubic root of 13087373 is about 235.6590703500.

The spelling of 13087373 in words is "thirteen million, eighty-seven thousand, three hundred seventy-three".