495339791 has 2 divisors, whose sum is σ = 495339792. Its totient is φ = 495339790.

The previous prime is 495339781. The next prime is 495339797. The reversal of 495339791 is 197933594.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495339791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495339797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247669895 + 247669896.

It is an arithmetic number, because the mean of its divisors is an integer number (247669896).

Almost surely, 2^495339791 is an apocalyptic number.

495339791 is a deficient number, since it is larger than the sum of its proper divisors (1).

495339791 is an equidigital number, since it uses as much as digits as its factorization.

495339791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 50.

The square root of 495339791 is about 22256.2303861188. The cubic root of 495339791 is about 791.2269515201.

It can be divided in two parts, 4953 and 39791, that added together give a palindrome (44744).

The spelling of 495339791 in words is "four hundred ninety-five million, three hundred thirty-nine thousand, seven hundred ninety-one".