8469121 has 2 divisors, whose sum is σ = 8469122. Its totient is φ = 8469120.

The previous prime is 8469119. The next prime is 8469127. The reversal of 8469121 is 1219648.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8151025 + 318096 = 2855^2 + 564^2 .

It is a cyclic number.

It is not a de Polignac number, because 8469121 - 2¹ = 8469119 is a prime.

Together with 8469119, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8469127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4234560 + 4234561.

It is an arithmetic number, because the mean of its divisors is an integer number (4234561).

Almost surely, 2^8469121 is an apocalyptic number.

It is an amenable number.

8469121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8469121 is an equidigital number, since it uses as much as digits as its factorization.

8469121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 8469121 is about 2910.1754242657. The cubic root of 8469121 is about 203.8353230163.

The spelling of 8469121 in words is "eight million, four hundred sixty-nine thousand, one hundred twenty-one".