12776670 has 64 divisors (see below), whose sum is σ = 34560000. Its totient is φ = 3358368.

The previous prime is 12776641. The next prime is 12776671. The reversal of 12776670 is 7667721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21031 + ... + 21629.

It is an arithmetic number, because the mean of its divisors is an integer number (540000).

Almost surely, 2^12776670 is an apocalyptic number.

12776670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12776670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280000).

12776670 is an abundant number, since it is smaller than the sum of its proper divisors (21783330).

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

12776670 is a wasteful number, since it uses less digits than its factorization.

12776670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 12776670 is about 3574.4468103470. The cubic root of 12776670 is about 233.7792131790.

The spelling of 12776670 in words is "twelve million, seven hundred seventy-six thousand, six hundred seventy".