614709947 has 2 divisors, whose sum is σ = 614709948. Its totient is φ = 614709946.

The previous prime is 614709883. The next prime is 614709961. The reversal of 614709947 is 749907416.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 614709947 - 2⁶ = 614709883 is a prime.

It is not a weakly prime, because it can be changed into another prime (614705947) 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, 307354973 + 307354974.

It is an arithmetic number, because the mean of its divisors is an integer number (307354974).

Almost surely, 2^614709947 is an apocalyptic number.

614709947 is a deficient number, since it is larger than the sum of its proper divisors (1).

614709947 is an equidigital number, since it uses as much as digits as its factorization.

614709947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 614709947 is about 24793.3448126710. The cubic root of 614709947 is about 850.2697861037.

It can be divided in two parts, 61470 and 9947, that added together give a palindrome (71417).

The spelling of 614709947 in words is "six hundred fourteen million, seven hundred nine thousand, nine hundred forty-seven".