495939947 has 2 divisors, whose sum is σ = 495939948. Its totient is φ = 495939946.

The previous prime is 495939923. The next prime is 495939979. The reversal of 495939947 is 749939594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495939947 - 2⁶ = 495939883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (495939247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247969973 + 247969974.

It is an arithmetic number, because the mean of its divisors is an integer number (247969974).

Almost surely, 2^495939947 is an apocalyptic number.

495939947 is a deficient number, since it is larger than the sum of its proper divisors (1).

495939947 is an equidigital number, since it uses as much as digits as its factorization.

495939947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11022480, while the sum is 59.

The square root of 495939947 is about 22269.7091808582. The cubic root of 495939947 is about 791.5463739713.

The spelling of 495939947 in words is "four hundred ninety-five million, nine hundred thirty-nine thousand, nine hundred forty-seven".