869416241 has 2 divisors, whose sum is σ = 869416242. Its totient is φ = 869416240.

The previous prime is 869416189. The next prime is 869416243. The reversal of 869416241 is 142614968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575808016 + 293608225 = 23996^2 + 17135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869416241 is a prime.

It is a super-2 number, since 2×869416241² = 1511769200229140162, which contains 22 as substring.

Together with 869416243, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_44525489 and since 869416241 and 44525489 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (869416243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434708120 + 434708121.

It is an arithmetic number, because the mean of its divisors is an integer number (434708121).

Almost surely, 2^869416241 is an apocalyptic number.

It is an amenable number.

869416241 is a deficient number, since it is larger than the sum of its proper divisors (1).

869416241 is an equidigital number, since it uses as much as digits as its factorization.

869416241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 869416241 is about 29485.8651051652. The cubic root of 869416241 is about 954.4267059785.

The spelling of 869416241 in words is "eight hundred sixty-nine million, four hundred sixteen thousand, two hundred forty-one".