12765616 has 10 divisors (see below), whose sum is σ = 24733412. Its totient is φ = 6382800.

The previous prime is 12765611. The next prime is 12765619. The reversal of 12765616 is 61656721.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12765611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398910 + ... + 398941.

Almost surely, 2^12765616 is an apocalyptic number.

12765616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12765616 is a deficient number, since it is larger than the sum of its proper divisors (11967796).

12765616 is an equidigital number, since it uses as much as digits as its factorization.

12765616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797859 (or 797853 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 12765616 is about 3572.9002225083. The cubic root of 12765616 is about 233.7117740879.

The spelling of 12765616 in words is "twelve million, seven hundred sixty-five thousand, six hundred sixteen".