12679578 has 80 divisors (see below), whose sum is σ = 30735936. Its totient is φ = 3896640.

The previous prime is 12679573. The next prime is 12679633. The reversal of 12679578 is 87597621.

12679578 is a `hidden beast` number, since 1 + 2 + 6 + 79 + 578 = 666.

12679578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12679571) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 152725 + ... + 152807.

Almost surely, 2^12679578 is an apocalyptic number.

12679578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12679578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15367968).

12679578 is an abundant number, since it is smaller than the sum of its proper divisors (18056358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12679578 is a wasteful number, since it uses less digits than its factorization.

12679578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 152 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12679578 is about 3560.8395077566. The cubic root of 12679578 is about 233.1855313398.

The spelling of 12679578 in words is "twelve million, six hundred seventy-nine thousand, five hundred seventy-eight".