12312087 has 8 divisors (see below), whose sum is σ = 16525440. Its totient is φ = 8153400.

The previous prime is 12312067. The next prime is 12312089. The reversal of 12312087 is 78021321.

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

It is not a de Polignac number, because 12312087 - 2⁶ = 12312023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312089) 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, 13137 + ... + 14042.

It is an arithmetic number, because the mean of its divisors is an integer number (2065680).

Almost surely, 2^12312087 is an apocalyptic number.

12312087 is a deficient number, since it is larger than the sum of its proper divisors (4213353).

12312087 is a wasteful number, since it uses less digits than its factorization.

12312087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27333.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12312087 is about 3508.8583613477. The cubic root of 12312087 is about 230.9106117668.

The spelling of 12312087 in words is "twelve million, three hundred twelve thousand, eighty-seven".