298578949 has 4 divisors (see below), whose sum is σ = 308210560. Its totient is φ = 288947340.

The previous prime is 298578919. The next prime is 298579019. The reversal of 298578949 is 949875892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 298578949 - 2⁷ = 298578821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298578919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815759 + ... + 4815820.

It is an arithmetic number, because the mean of its divisors is an integer number (77052640).

Almost surely, 2^298578949 is an apocalyptic number.

It is an amenable number.

298578949 is a deficient number, since it is larger than the sum of its proper divisors (9631611).

298578949 is an equidigital number, since it uses as much as digits as its factorization.

298578949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9631610.

The product of its digits is 13063680, while the sum is 61.

The square root of 298578949 is about 17279.4371725470. The cubic root of 298578949 is about 668.3742785524.

The spelling of 298578949 in words is "two hundred ninety-eight million, five hundred seventy-eight thousand, nine hundred forty-nine".