12739770 has 48 divisors (see below), whose sum is σ = 33300072. Its totient is φ = 3379200.

The previous prime is 12739763. The next prime is 12739799. The reversal of 12739770 is 7793721.

It can be written as a sum of positive squares in 4 ways, for example, as 12383361 + 356409 = 3519^2 + 597^2 .

It is a super-3 number, since 3×12739770³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31570 + ... + 31970.

Almost surely, 2^12739770 is an apocalyptic number.

12739770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12739770 is an abundant number, since it is smaller than the sum of its proper divisors (20560302).

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

12739770 is a wasteful number, since it uses less digits than its factorization.

12739770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 12739770 is about 3569.2814402902. The cubic root of 12739770 is about 233.5539387548.

The spelling of 12739770 in words is "twelve million, seven hundred thirty-nine thousand, seven hundred seventy".