12776465 has 8 divisors (see below), whose sum is σ = 16511208. Its totient is φ = 9434880.

The previous prime is 12776459. The next prime is 12776471. The reversal of 12776465 is 56467721.

It is an interprime number because it is at equal distance from previous prime (12776459) and next prime (12776471).

It can be written as a sum of positive squares in 4 ways, for example, as 322624 + 12453841 = 568^2 + 3529^2 .

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

It is not a de Polignac number, because 12776465 - 2¹⁸ = 12514321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98216 + ... + 98345.

It is an arithmetic number, because the mean of its divisors is an integer number (2063901).

Almost surely, 2^12776465 is an apocalyptic number.

It is an amenable number.

12776465 is a deficient number, since it is larger than the sum of its proper divisors (3734743).

12776465 is a wasteful number, since it uses less digits than its factorization.

12776465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196579.

The product of its digits is 70560, while the sum is 38.

The square root of 12776465 is about 3574.4181344661. The cubic root of 12776465 is about 233.7779628534. Note that the first 3 decimals are identical.

The spelling of 12776465 in words is "twelve million, seven hundred seventy-six thousand, four hundred sixty-five".