12890477 has 2 divisors, whose sum is σ = 12890478. Its totient is φ = 12890476.

The previous prime is 12890473. The next prime is 12890483. The reversal of 12890477 is 77409821.

12890477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11519236 + 1371241 = 3394^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 12890477 - 2² = 12890473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12890477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12890473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445238 + 6445239.

It is an arithmetic number, because the mean of its divisors is an integer number (6445239).

Almost surely, 2^12890477 is an apocalyptic number.

It is an amenable number.

12890477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12890477 is an equidigital number, since it uses as much as digits as its factorization.

12890477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12890477 is about 3590.3310432326. The cubic root of 12890477 is about 234.4712845758.

The spelling of 12890477 in words is "twelve million, eight hundred ninety thousand, four hundred seventy-seven".