12890516 has 6 divisors (see below), whose sum is σ = 22558410. Its totient is φ = 6445256.

The previous prime is 12890491. The next prime is 12890543. The reversal of 12890516 is 61509821.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 960400 = 3454^2 + 980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611311 + ... + 1611318.

It is an arithmetic number, because the mean of its divisors is an integer number (3759735).

Almost surely, 2^12890516 is an apocalyptic number.

It is an amenable number.

12890516 is a deficient number, since it is larger than the sum of its proper divisors (9667894).

12890516 is a wasteful number, since it uses less digits than its factorization.

12890516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222633 (or 3222631 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12890516 is about 3590.3364744826. The cubic root of 12890516 is about 234.4715210390.

The spelling of 12890516 in words is "twelve million, eight hundred ninety thousand, five hundred sixteen".