247082089 has 2 divisors, whose sum is σ = 247082090. Its totient is φ = 247082088.

The previous prime is 247082053. The next prime is 247082107. The reversal of 247082089 is 980280742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160275600 + 86806489 = 12660^2 + 9317^2 .

It is a cyclic number.

It is not a de Polignac number, because 247082089 - 2⁹ = 247081577 is a prime.

It is a super-2 number, since 2×247082089² = 122099117409207842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247082789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123541044 + 123541045.

It is an arithmetic number, because the mean of its divisors is an integer number (123541045).

Almost surely, 2^247082089 is an apocalyptic number.

It is an amenable number.

247082089 is a deficient number, since it is larger than the sum of its proper divisors (1).

247082089 is an equidigital number, since it uses as much as digits as its factorization.

247082089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 247082089 is about 15718.8450275458. The cubic root of 247082089 is about 627.5000356608.

The spelling of 247082089 in words is "two hundred forty-seven million, eighty-two thousand, eighty-nine".