714981809 has 2 divisors, whose sum is σ = 714981810. Its totient is φ = 714981808.

The previous prime is 714981803. The next prime is 714981851. The reversal of 714981809 is 908189417.

714981809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375390625 + 339591184 = 19375^2 + 18428^2 .

It is a cyclic number.

It is not a de Polignac number, because 714981809 - 2¹⁶ = 714916273 is a prime.

It is a super-2 number, since 2×714981809² = 1022397974401824962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (714981803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357490904 + 357490905.

It is an arithmetic number, because the mean of its divisors is an integer number (357490905).

Almost surely, 2^714981809 is an apocalyptic number.

It is an amenable number.

714981809 is a deficient number, since it is larger than the sum of its proper divisors (1).

714981809 is an equidigital number, since it uses as much as digits as its factorization.

714981809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 714981809 is about 26739.1437596644. The cubic root of 714981809 is about 894.1938201983.

The spelling of 714981809 in words is "seven hundred fourteen million, nine hundred eighty-one thousand, eight hundred nine".