298623 has 24 divisors (see below), whose sum is σ = 468480. Its totient is φ = 168480.

The previous prime is 298621. The next prime is 298631. The reversal of 298623 is 326892.

It is not a de Polignac number, because 298623 - 2¹ = 298621 is a prime.

It is a super-2 number, since 2×298623² = 178351392258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9618 + ... + 9648.

It is an arithmetic number, because the mean of its divisors is an integer number (19520).

2²⁹⁸⁶²³ is an apocalyptic number.

298623 is a deficient number, since it is larger than the sum of its proper divisors (169857).

298623 is a wasteful number, since it uses less digits than its factorization.

298623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 66 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 298623 is about 546.4640884816. The cubic root of 298623 is about 66.8407146585.

The spelling of 298623 in words is "two hundred ninety-eight thousand, six hundred twenty-three".