298631 has 2 divisors, whose sum is σ = 298632. Its totient is φ = 298630.

The previous prime is 298621. The next prime is 298651. The reversal of 298631 is 136892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298631 - 2¹⁰ = 297607 is a prime.

It is a super-2 number, since 2×298631² = 178360948322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 298594 and 298603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149315 + 149316.

It is an arithmetic number, because the mean of its divisors is an integer number (149316).

2²⁹⁸⁶³¹ is an apocalyptic number.

298631 is a deficient number, since it is larger than the sum of its proper divisors (1).

298631 is an equidigital number, since it uses as much as digits as its factorization.

298631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 298631 is about 546.4714082182. The cubic root of 298631 is about 66.8413115325.

It can be divided in two parts, 298 and 631, that added together give a palindrome (929).

The spelling of 298631 in words is "two hundred ninety-eight thousand, six hundred thirty-one".