978005003 has 2 divisors, whose sum is σ = 978005004. Its totient is φ = 978005002.

The previous prime is 978004987. The next prime is 978005023. The reversal of 978005003 is 300500879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 978005003 - 2⁴ = 978004987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (978005023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489002501 + 489002502.

It is an arithmetic number, because the mean of its divisors is an integer number (489002502).

Almost surely, 2^978005003 is an apocalyptic number.

978005003 is a deficient number, since it is larger than the sum of its proper divisors (1).

978005003 is an equidigital number, since it uses as much as digits as its factorization.

978005003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 978005003 is about 31273.0715312711. The cubic root of 978005003 is about 992.6139143868.

The spelling of 978005003 in words is "nine hundred seventy-eight million, five thousand, three".