978514013 has 2 divisors, whose sum is σ = 978514014. Its totient is φ = 978514012.

The previous prime is 978513979. The next prime is 978514049. The reversal of 978514013 is 310415879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644245924 + 334268089 = 25382^2 + 18283^2 .

It is a cyclic number.

It is not a de Polignac number, because 978514013 - 2¹⁴ = 978497629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978514073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489257006 + 489257007.

It is an arithmetic number, because the mean of its divisors is an integer number (489257007).

Almost surely, 2^978514013 is an apocalyptic number.

It is an amenable number.

978514013 is a deficient number, since it is larger than the sum of its proper divisors (1).

978514013 is an equidigital number, since it uses as much as digits as its factorization.

978514013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 978514013 is about 31281.2086243483. The cubic root of 978514013 is about 992.7860889594.

The spelling of 978514013 in words is "nine hundred seventy-eight million, five hundred fourteen thousand, thirteen".