298178479 has 2 divisors, whose sum is σ = 298178480. Its totient is φ = 298178478.

The previous prime is 298178471. The next prime is 298178497. The reversal of 298178479 is 974871892.

It is a happy number.

Together with next prime (298178497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298178479 - 2³ = 298178471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298178471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149089239 + 149089240.

It is an arithmetic number, because the mean of its divisors is an integer number (149089240).

Almost surely, 2^298178479 is an apocalyptic number.

298178479 is a deficient number, since it is larger than the sum of its proper divisors (1).

298178479 is an equidigital number, since it uses as much as digits as its factorization.

298178479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 55.

The square root of 298178479 is about 17267.8452332652. The cubic root of 298178479 is about 668.0753251201.

The spelling of 298178479 in words is "two hundred ninety-eight million, one hundred seventy-eight thousand, four hundred seventy-nine".