2658493 has 4 divisors (see below), whose sum is σ = 2698240. Its totient is φ = 2618748.

The previous prime is 2658463. The next prime is 2658497. The reversal of 2658493 is 3948562.

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 2658493 - 2¹³ = 2650301 is a prime.

It is a d-powerful number, because it can be written as 2²⁰ + 6³ + 5⁴ + 8⁴ + 4⁶ + 9⁴ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658497) 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, 19773 + ... + 19906.

It is an arithmetic number, because the mean of its divisors is an integer number (674560).

2^2658493 is an apocalyptic number.

It is an amenable number.

2658493 is a deficient number, since it is larger than the sum of its proper divisors (39747).

2658493 is an equidigital number, since it uses as much as digits as its factorization.

2658493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39746.

The product of its digits is 51840, while the sum is 37.

The square root of 2658493 is about 1630.4885770836. The cubic root of 2658493 is about 138.5304272664.

The spelling of 2658493 in words is "two million, six hundred fifty-eight thousand, four hundred ninety-three".