495658 has 4 divisors (see below), whose sum is σ = 743490. Its totient is φ = 247828.

The previous prime is 495647. The next prime is 495667. The reversal of 495658 is 856594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 856594 = 2 ⋅428297.

It can be written as a sum of positive squares in only one way, i.e., 431649 + 64009 = 657^2 + 253^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

495658 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123913 + ... + 123916.

2⁴⁹⁵⁶⁵⁸ is an apocalyptic number.

495658 is a deficient number, since it is larger than the sum of its proper divisors (247832).

495658 is a wasteful number, since it uses less digits than its factorization.

495658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247831.

The product of its digits is 43200, while the sum is 37.

The square root of 495658 is about 704.0298289135. The cubic root of 495658 is about 79.1396344764.

The spelling of 495658 in words is "four hundred ninety-five thousand, six hundred fifty-eight".