12578743 has 2 divisors, whose sum is σ = 12578744. Its totient is φ = 12578742.

The previous prime is 12578737. The next prime is 12578767. The reversal of 12578743 is 34787521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12578743 - 2²¹ = 10481591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12578443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289371 + 6289372.

It is an arithmetic number, because the mean of its divisors is an integer number (6289372).

Almost surely, 2^12578743 is an apocalyptic number.

12578743 is a deficient number, since it is larger than the sum of its proper divisors (1).

12578743 is an equidigital number, since it uses as much as digits as its factorization.

12578743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 12578743 is about 3546.6523652594. The cubic root of 12578743 is about 232.5657454645.

It can be divided in two parts, 1257 and 8743, that added together give a 4-th power (10000 = 10⁴).

The spelling of 12578743 in words is "twelve million, five hundred seventy-eight thousand, seven hundred forty-three".