12659770 has 8 divisors (see below), whose sum is σ = 22787604. Its totient is φ = 5063904.

The previous prime is 12659767. The next prime is 12659771. The reversal of 12659770 is 7795621.

It can be written as a sum of positive squares in 2 ways, for example, as 11716929 + 942841 = 3423^2 + 971^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12659771) 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, 632979 + ... + 632998.

Almost surely, 2^12659770 is an apocalyptic number.

12659770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12659770 is a deficient number, since it is larger than the sum of its proper divisors (10127834).

12659770 is a wasteful number, since it uses less digits than its factorization.

12659770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265984.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12659770 is about 3558.0570540676. The cubic root of 12659770 is about 233.0640408000.

The spelling of 12659770 in words is "twelve million, six hundred fifty-nine thousand, seven hundred seventy".