12987373 has 8 divisors (see below), whose sum is σ = 14987648. Its totient is φ = 11023344.

The previous prime is 12987367. The next prime is 12987379. The reversal of 12987373 is 37378921.

It is an interprime number because it is at equal distance from previous prime (12987367) and next prime (12987379).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12987373 - 2²¹ = 10890221 is a prime.

It is a super-2 number, since 2×12987373² = 337343714882258, 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 (12987379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8286 + ... + 9727.

It is an arithmetic number, because the mean of its divisors is an integer number (1873456).

Almost surely, 2^12987373 is an apocalyptic number.

It is an amenable number.

12987373 is a deficient number, since it is larger than the sum of its proper divisors (2000275).

12987373 is a wasteful number, since it uses less digits than its factorization.

12987373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18123.

The product of its digits is 63504, while the sum is 40.

The square root of 12987373 is about 3603.7998002109. The cubic root of 12987373 is about 235.0573151282.

The spelling of 12987373 in words is "twelve million, nine hundred eighty-seven thousand, three hundred seventy-three".