495439739 has 2 divisors, whose sum is σ = 495439740. Its totient is φ = 495439738.

The previous prime is 495439727. The next prime is 495439787. The reversal of 495439739 is 937934594.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495439739 is a prime.

It is not a weakly prime, because it can be changed into another prime (495439709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247719869 + 247719870.

It is an arithmetic number, because the mean of its divisors is an integer number (247719870).

Almost surely, 2^495439739 is an apocalyptic number.

495439739 is a deficient number, since it is larger than the sum of its proper divisors (1).

495439739 is an equidigital number, since it uses as much as digits as its factorization.

495439739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 53.

The square root of 495439739 is about 22258.4756665860. The cubic root of 495439739 is about 791.2801649805.

The spelling of 495439739 in words is "four hundred ninety-five million, four hundred thirty-nine thousand, seven hundred thirty-nine".