289897453 has 2 divisors, whose sum is σ = 289897454. Its totient is φ = 289897452.

The previous prime is 289897441. The next prime is 289897463. The reversal of 289897453 is 354798982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221950404 + 67947049 = 14898^2 + 8243^2 .

It is a cyclic number.

It is not a de Polignac number, because 289897453 - 2¹³ = 289889261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289897394 and 289897403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289897403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144948726 + 144948727.

It is an arithmetic number, because the mean of its divisors is an integer number (144948727).

Almost surely, 2^289897453 is an apocalyptic number.

It is an amenable number.

289897453 is a deficient number, since it is larger than the sum of its proper divisors (1).

289897453 is an equidigital number, since it uses as much as digits as its factorization.

289897453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 55.

The square root of 289897453 is about 17026.3752161169. The cubic root of 289897453 is about 661.8325661268.

The spelling of 289897453 in words is "two hundred eighty-nine million, eight hundred ninety-seven thousand, four hundred fifty-three".