12578497 has 2 divisors, whose sum is σ = 12578498. Its totient is φ = 12578496.

The previous prime is 12578477. The next prime is 12578507. The reversal of 12578497 is 79487521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 4490161 = 2844^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 12578497 - 2¹¹ = 12576449 is a prime.

It is not a weakly prime, because it can be changed into another prime (12578407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289248 + 6289249.

It is an arithmetic number, because the mean of its divisors is an integer number (6289249).

Almost surely, 2^12578497 is an apocalyptic number.

It is an amenable number.

12578497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12578497 is an equidigital number, since it uses as much as digits as its factorization.

12578497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 12578497 is about 3546.6176844989. The cubic root of 12578497 is about 232.5642293738.

The spelling of 12578497 in words is "twelve million, five hundred seventy-eight thousand, four hundred ninety-seven".