998476547 has 2 divisors, whose sum is σ = 998476548. Its totient is φ = 998476546.

The previous prime is 998476519. The next prime is 998476603. The reversal of 998476547 is 745674899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998476547 - 2⁸ = 998476291 is a prime.

It is not a weakly prime, because it can be changed into another prime (998476517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499238273 + 499238274.

It is an arithmetic number, because the mean of its divisors is an integer number (499238274).

Almost surely, 2^998476547 is an apocalyptic number.

998476547 is a deficient number, since it is larger than the sum of its proper divisors (1).

998476547 is an equidigital number, since it uses as much as digits as its factorization.

998476547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The square root of 998476547 is about 31598.6795135493. The cubic root of 998476547 is about 999.4919242361.

The spelling of 998476547 in words is "nine hundred ninety-eight million, four hundred seventy-six thousand, five hundred forty-seven".