978064123 has 2 divisors, whose sum is σ = 978064124. Its totient is φ = 978064122.

The previous prime is 978064097. The next prime is 978064127. The reversal of 978064123 is 321460879.

It is a strong prime.

It is an emirp because it is prime and its reverse (321460879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978064123 - 2⁵ = 978064091 is a prime.

It is not a weakly prime, because it can be changed into another prime (978064127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489032061 + 489032062.

It is an arithmetic number, because the mean of its divisors is an integer number (489032062).

Almost surely, 2^978064123 is an apocalyptic number.

978064123 is a deficient number, since it is larger than the sum of its proper divisors (1).

978064123 is an equidigital number, since it uses as much as digits as its factorization.

978064123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 978064123 is about 31274.0167391399. The cubic root of 978064123 is about 992.6339150180.

The spelling of 978064123 in words is "nine hundred seventy-eight million, sixty-four thousand, one hundred twenty-three".