978398303 has 2 divisors, whose sum is σ = 978398304. Its totient is φ = 978398302.

The previous prime is 978398299. The next prime is 978398321. The reversal of 978398303 is 303893879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 978398303 - 2² = 978398299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978398503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489199151 + 489199152.

It is an arithmetic number, because the mean of its divisors is an integer number (489199152).

Almost surely, 2^978398303 is an apocalyptic number.

978398303 is a deficient number, since it is larger than the sum of its proper divisors (1).

978398303 is an equidigital number, since it uses as much as digits as its factorization.

978398303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 978398303 is about 31279.3590567326. The cubic root of 978398303 is about 992.7469548556.

The spelling of 978398303 in words is "nine hundred seventy-eight million, three hundred ninety-eight thousand, three hundred three".