298949557 has 2 divisors, whose sum is σ = 298949558. Its totient is φ = 298949556.

The previous prime is 298949551. The next prime is 298949587. The reversal of 298949557 is 755949892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201611601 + 97337956 = 14199^2 + 9866^2 .

It is a cyclic number.

It is not a de Polignac number, because 298949557 - 2²⁷ = 164731829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298949551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149474778 + 149474779.

It is an arithmetic number, because the mean of its divisors is an integer number (149474779).

Almost surely, 2^298949557 is an apocalyptic number.

It is an amenable number.

298949557 is a deficient number, since it is larger than the sum of its proper divisors (1).

298949557 is an equidigital number, since it uses as much as digits as its factorization.

298949557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 58.

The square root of 298949557 is about 17290.1578072613. The cubic root of 298949557 is about 668.6507017442.

The spelling of 298949557 in words is "two hundred ninety-eight million, nine hundred forty-nine thousand, five hundred fifty-seven".