12770905 has 8 divisors (see below), whose sum is σ = 17514432. Its totient is φ = 8757168.

The previous prime is 12770897. The next prime is 12770909. The reversal of 12770905 is 50907721.

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

It is not a de Polignac number, because 12770905 - 2³ = 12770897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12770909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182407 + ... + 182476.

It is an arithmetic number, because the mean of its divisors is an integer number (2189304).

Almost surely, 2^12770905 is an apocalyptic number.

It is an amenable number.

12770905 is a deficient number, since it is larger than the sum of its proper divisors (4743527).

12770905 is an equidigital number, since it uses as much as digits as its factorization.

12770905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364895.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 12770905 is about 3573.6403008697. The cubic root of 12770905 is about 233.7440464801.

The spelling of 12770905 in words is "twelve million, seven hundred seventy thousand, nine hundred five".