298541921 has 4 divisors (see below), whose sum is σ = 308836500. Its totient is φ = 288247344.

The previous prime is 298541917. The next prime is 298541933. The reversal of 298541921 is 129145892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103632400 + 194909521 = 10180^2 + 13961^2 .

It is a cyclic number.

It is not a de Polignac number, because 298541921 - 2² = 298541917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298541521) 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, 5147246 + ... + 5147303.

It is an arithmetic number, because the mean of its divisors is an integer number (77209125).

Almost surely, 2^298541921 is an apocalyptic number.

It is an amenable number.

298541921 is a deficient number, since it is larger than the sum of its proper divisors (10294579).

298541921 is a wasteful number, since it uses less digits than its factorization.

298541921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294578.

The product of its digits is 51840, while the sum is 41.

The square root of 298541921 is about 17278.3656923912. The cubic root of 298541921 is about 668.3466481318.

The spelling of 298541921 in words is "two hundred ninety-eight million, five hundred forty-one thousand, nine hundred twenty-one".