298214947 has 4 divisors (see below), whose sum is σ = 307834816. Its totient is φ = 288595080.

The previous prime is 298214869. The next prime is 298214971. The reversal of 298214947 is 749412892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298214947 is a prime.

It is a super-2 number, since 2×298214947² = 177864309228425618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 298214897 and 298214906.

It is not an unprimeable number, because it can be changed into a prime (298214977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809888 + ... + 4809949.

It is an arithmetic number, because the mean of its divisors is an integer number (76958704).

Almost surely, 2^298214947 is an apocalyptic number.

298214947 is a deficient number, since it is larger than the sum of its proper divisors (9619869).

298214947 is an equidigital number, since it uses as much as digits as its factorization.

298214947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619868.

The product of its digits is 290304, while the sum is 46.

The square root of 298214947 is about 17268.9011520710. The cubic root of 298214947 is about 668.1025597905.

The spelling of 298214947 in words is "two hundred ninety-eight million, two hundred fourteen thousand, nine hundred forty-seven".