298407 has 4 divisors (see below), whose sum is σ = 397880. Its totient is φ = 198936.

The previous prime is 298399. The next prime is 298409. The reversal of 298407 is 704892.

298407 = T₂₅₃ + T₂₅₄ + ... + T₂₆₁.

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

It is not a de Polignac number, because 298407 - 2³ = 298399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298407.

It is not an unprimeable number, because it can be changed into a prime (298409) 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, 49732 + ... + 49737.

It is an arithmetic number, because the mean of its divisors is an integer number (99470).

2²⁹⁸⁴⁰⁷ is an apocalyptic number.

298407 is a deficient number, since it is larger than the sum of its proper divisors (99473).

298407 is an equidigital number, since it uses as much as digits as its factorization.

298407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99472.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 298407 is about 546.2664185176. The cubic root of 298407 is about 66.8245950285.

The spelling of 298407 in words is "two hundred ninety-eight thousand, four hundred seven".