289461949 has 4 divisors (see below), whose sum is σ = 330813664. Its totient is φ = 248110236.

The previous prime is 289461937. The next prime is 289461961. The reversal of 289461949 is 949164982.

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 an interprime number because it is at equal distance from previous prime (289461937) and next prime (289461961).

It is a cyclic number.

It is not a de Polignac number, because 289461949 - 2⁵ = 289461917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289461896 and 289461905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289461929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20675847 + ... + 20675860.

It is an arithmetic number, because the mean of its divisors is an integer number (82703416).

Almost surely, 2^289461949 is an apocalyptic number.

It is an amenable number.

289461949 is a deficient number, since it is larger than the sum of its proper divisors (41351715).

289461949 is an equidigital number, since it uses as much as digits as its factorization.

289461949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41351714.

The product of its digits is 1119744, while the sum is 52.

The square root of 289461949 is about 17013.5813102357. The cubic root of 289461949 is about 661.5009831470.

The spelling of 289461949 in words is "two hundred eighty-nine million, four hundred sixty-one thousand, nine hundred forty-nine".