12387057 has 8 divisors (see below), whose sum is σ = 16564800. Its totient is φ = 8233680.

The previous prime is 12387029. The next prime is 12387059. The reversal of 12387057 is 75078321.

12387057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12387057 - 2⁷ = 12386929 is a prime.

It is a super-2 number, since 2×12387057² = 306878362242498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12387059) 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, 4869 + ... + 6962.

It is an arithmetic number, because the mean of its divisors is an integer number (2070600).

Almost surely, 2^12387057 is an apocalyptic number.

It is an amenable number.

12387057 is a deficient number, since it is larger than the sum of its proper divisors (4177743).

12387057 is a wasteful number, since it uses less digits than its factorization.

12387057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 12387057 is about 3519.5251100113. The cubic root of 12387057 is about 231.3783458951.

The spelling of 12387057 in words is "twelve million, three hundred eighty-seven thousand, fifty-seven".