289364077 has 2 divisors, whose sum is σ = 289364078. Its totient is φ = 289364076.

The previous prime is 289364069. The next prime is 289364083. The reversal of 289364077 is 770463982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208831401 + 80532676 = 14451^2 + 8974^2 .

It is a cyclic number.

It is not a de Polignac number, because 289364077 - 2³ = 289364069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289364027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144682038 + 144682039.

It is an arithmetic number, because the mean of its divisors is an integer number (144682039).

Almost surely, 2^289364077 is an apocalyptic number.

It is an amenable number.

289364077 is a deficient number, since it is larger than the sum of its proper divisors (1).

289364077 is an equidigital number, since it uses as much as digits as its factorization.

289364077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 289364077 is about 17010.7047766987. The cubic root of 289364077 is about 661.4264198378.

The spelling of 289364077 in words is "two hundred eighty-nine million, three hundred sixty-four thousand, seventy-seven".