12457869 has 8 divisors (see below), whose sum is σ = 16626912. Its totient is φ = 8297040.

The previous prime is 12457859. The next prime is 12457871. The reversal of 12457869 is 96875421.

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

It is not a de Polignac number, because 12457869 - 2¹³ = 12449677 is a prime.

It is a super-2 number, since 2×12457869² = 310397000042322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12457869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457859) 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, 4287 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (2078364).

Almost surely, 2^12457869 is an apocalyptic number.

It is an amenable number.

12457869 is a deficient number, since it is larger than the sum of its proper divisors (4169043).

12457869 is a wasteful number, since it uses less digits than its factorization.

12457869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107.

The product of its digits is 120960, while the sum is 42.

The square root of 12457869 is about 3529.5706537765. The cubic root of 12457869 is about 231.8184084860.

The spelling of 12457869 in words is "twelve million, four hundred fifty-seven thousand, eight hundred sixty-nine".