514787947 has 2 divisors, whose sum is σ = 514787948. Its totient is φ = 514787946.

The previous prime is 514787899. The next prime is 514787951. The reversal of 514787947 is 749787415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514787947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 514787894 and 514787903.

It is not a weakly prime, because it can be changed into another prime (514767947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257393973 + 257393974.

It is an arithmetic number, because the mean of its divisors is an integer number (257393974).

Almost surely, 2^514787947 is an apocalyptic number.

514787947 is a deficient number, since it is larger than the sum of its proper divisors (1).

514787947 is an equidigital number, since it uses as much as digits as its factorization.

514787947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 52.

The square root of 514787947 is about 22688.9388689731. The cubic root of 514787947 is about 801.4494280910.

The spelling of 514787947 in words is "five hundred fourteen million, seven hundred eighty-seven thousand, nine hundred forty-seven".