12735970 has 24 divisors (see below), whose sum is σ = 24767316. Its totient is φ = 4687488.

The previous prime is 12735967. The next prime is 12735971. The reversal of 12735970 is 7953721.

It can be written as a sum of positive squares in 6 ways, for example, as 436921 + 12299049 = 661^2 + 3507^2 .

It is a super-3 number, since 3×12735970³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12735971) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40534 + ... + 40846.

Almost surely, 2^12735970 is an apocalyptic number.

12735970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12735970 is a deficient number, since it is larger than the sum of its proper divisors (12031346).

12735970 is an equidigital number, since it uses as much as digits as its factorization.

12735970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 12735970 is about 3568.7490805603. The cubic root of 12735970 is about 233.5307150696.

The spelling of 12735970 in words is "twelve million, seven hundred thirty-five thousand, nine hundred seventy".