978041963 has 2 divisors, whose sum is σ = 978041964. Its totient is φ = 978041962.

The previous prime is 978041917. The next prime is 978041983. The reversal of 978041963 is 369140879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 978041963 - 2¹⁶ = 977976427 is a prime.

It is a super-3 number, since 3×978041963³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (978041983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489020981 + 489020982.

It is an arithmetic number, because the mean of its divisors is an integer number (489020982).

Almost surely, 2^978041963 is an apocalyptic number.

978041963 is a deficient number, since it is larger than the sum of its proper divisors (1).

978041963 is an equidigital number, since it uses as much as digits as its factorization.

978041963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 978041963 is about 31273.6624494158. The cubic root of 978041963 is about 992.6264182588.

The spelling of 978041963 in words is "nine hundred seventy-eight million, forty-one thousand, nine hundred sixty-three".