658249 has 4 divisors (see below), whose sum is σ = 660240. Its totient is φ = 656260.

The previous prime is 658247. The next prime is 658253. The reversal of 658249 is 942856.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 658249 - 2¹ = 658247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (658247) 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, 367 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (165060).

2⁶⁵⁸²⁴⁹ is an apocalyptic number.

It is an amenable number.

658249 is a deficient number, since it is larger than the sum of its proper divisors (1991).

658249 is a wasteful number, since it uses less digits than its factorization.

658249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its digits is 17280, while the sum is 34.

The square root of 658249 is about 811.3254587402. The cubic root of 658249 is about 86.9888125836.

It can be divided in two parts, 65824 and 9, that multiplied together give a triangular number (592416 = T₁₀₈₈).

The spelling of 658249 in words is "six hundred fifty-eight thousand, two hundred forty-nine".