289396541 has 4 divisors (see below), whose sum is σ = 330738912. Its totient is φ = 248054172.

The previous prime is 289396537. The next prime is 289396567. The reversal of 289396541 is 145693982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289396541 - 2² = 289396537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289392541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20671175 + ... + 20671188.

It is an arithmetic number, because the mean of its divisors is an integer number (82684728).

Almost surely, 2^289396541 is an apocalyptic number.

It is an amenable number.

289396541 is a deficient number, since it is larger than the sum of its proper divisors (41342371).

289396541 is an equidigital number, since it uses as much as digits as its factorization.

289396541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41342370.

The product of its digits is 466560, while the sum is 47.

The square root of 289396541 is about 17011.6589725988. The cubic root of 289396541 is about 661.4511542423.

The spelling of 289396541 in words is "two hundred eighty-nine million, three hundred ninety-six thousand, five hundred forty-one".