12292087 has 4 divisors (see below), whose sum is σ = 12591936. Its totient is φ = 11992240.

The previous prime is 12292081. The next prime is 12292099. The reversal of 12292087 is 78029221.

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

It is a cyclic number.

It is not a de Polignac number, because 12292087 - 2¹⁹ = 11767799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12292081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149863 + ... + 149944.

It is an arithmetic number, because the mean of its divisors is an integer number (3147984).

Almost surely, 2^12292087 is an apocalyptic number.

12292087 is a deficient number, since it is larger than the sum of its proper divisors (299849).

12292087 is an equidigital number, since it uses as much as digits as its factorization.

12292087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299848.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12292087 is about 3506.0072732383. The cubic root of 12292087 is about 230.7855120678.

The spelling of 12292087 in words is "twelve million, two hundred ninety-two thousand, eighty-seven".