495439757 has 4 divisors (see below), whose sum is σ = 516980640. Its totient is φ = 473898876.

The previous prime is 495439739. The next prime is 495439787. The reversal of 495439757 is 757934594.

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 495439757 - 2⁸ = 495439501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 495439699 and 495439708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495439727) 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, 10770407 + ... + 10770452.

It is an arithmetic number, because the mean of its divisors is an integer number (129245160).

Almost surely, 2^495439757 is an apocalyptic number.

It is an amenable number.

495439757 is a deficient number, since it is larger than the sum of its proper divisors (21540883).

495439757 is a wasteful number, since it uses less digits than its factorization.

495439757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21540882.

The product of its digits is 4762800, while the sum is 53.

The square root of 495439757 is about 22258.4760709263. The cubic root of 495439757 is about 791.2801745633.

The spelling of 495439757 in words is "four hundred ninety-five million, four hundred thirty-nine thousand, seven hundred fifty-seven".