298346456521 has 3 divisors (see below), whose sum is σ = 298347002733. Its totient is φ = 298345910310.

The previous prime is 298346456497. The next prime is 298346456549. The reversal of 298346456521 is 125654643892.

The square root of 298346456521 is 546211.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 298346456521 - 2⁵ = 298346456489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298346456561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 273106 + ... + 819316.

It is an arithmetic number, because the mean of its divisors is an integer number (99449000911).

Almost surely, 2^298346456521 is an apocalyptic number.

298346456521 is the 546211-st square number.

298346456521 is the 273106-th centered octagonal number.

It is an amenable number.

298346456521 is a deficient number, since it is larger than the sum of its proper divisors (546212).

298346456521 is an frugal number, since it uses more digits than its factorization.

298346456521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092422 (or 546211 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The spelling of 298346456521 in words is "two hundred ninety-eight billion, three hundred forty-six million, four hundred fifty-six thousand, five hundred twenty-one".