12457079 has 4 divisors (see below), whose sum is σ = 12512184. Its totient is φ = 12401976.

The previous prime is 12457061. The next prime is 12457091. The reversal of 12457079 is 97075421.

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 12457079 - 2¹² = 12452983 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 (12457019) 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, 27212 + ... + 27665.

It is an arithmetic number, because the mean of its divisors is an integer number (3128046).

Almost surely, 2^12457079 is an apocalyptic number.

12457079 is a deficient number, since it is larger than the sum of its proper divisors (55105).

12457079 is an equidigital number, since it uses as much as digits as its factorization.

12457079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55104.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12457079 is about 3529.4587403737. The cubic root of 12457079 is about 231.8135082254.

The spelling of 12457079 in words is "twelve million, four hundred fifty-seven thousand, seventy-nine".