978012743 has 2 divisors, whose sum is σ = 978012744. Its totient is φ = 978012742.

The previous prime is 978012731. The next prime is 978012751. The reversal of 978012743 is 347210879.

978012743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 978012743 - 2¹⁴ = 977996359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 978012743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978012793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489006371 + 489006372.

It is an arithmetic number, because the mean of its divisors is an integer number (489006372).

Almost surely, 2^978012743 is an apocalyptic number.

978012743 is a deficient number, since it is larger than the sum of its proper divisors (1).

978012743 is an equidigital number, since it uses as much as digits as its factorization.

978012743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 978012743 is about 31273.1952796640. The cubic root of 978012743 is about 992.6165329185.

The spelling of 978012743 in words is "nine hundred seventy-eight million, twelve thousand, seven hundred forty-three".