495268993 has 4 divisors (see below), whose sum is σ = 495576148. Its totient is φ = 494961840.

The previous prime is 495268987. The next prime is 495268999. The reversal of 495268993 is 399862594.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (495268987) and next prime (495268999).

It can be written as a sum of positive squares in 2 ways, for example, as 166100544 + 329168449 = 12888^2 + 18143^2 .

It is a cyclic number.

It is not a de Polignac number, because 495268993 - 2⁹ = 495268481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495268999) 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, 151146 + ... + 154387.

It is an arithmetic number, because the mean of its divisors is an integer number (123894037).

Almost surely, 2^495268993 is an apocalyptic number.

It is an amenable number.

495268993 is a deficient number, since it is larger than the sum of its proper divisors (307155).

495268993 is a wasteful number, since it uses less digits than its factorization.

495268993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307154.

The product of its digits is 4199040, while the sum is 55.

The square root of 495268993 is about 22254.6398083636. The cubic root of 495268993 is about 791.1892535225.

The spelling of 495268993 in words is "four hundred ninety-five million, two hundred sixty-eight thousand, nine hundred ninety-three".