869439455 has 8 divisors (see below), whose sum is σ = 1043485632. Its totient is φ = 695446048.

The previous prime is 869439433. The next prime is 869439469. The reversal of 869439455 is 554934968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869439455 - 2⁸ = 869439199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869439397 and 869439406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57722 + ... + 71208.

It is an arithmetic number, because the mean of its divisors is an integer number (130435704).

Almost surely, 2^869439455 is an apocalyptic number.

869439455 is a deficient number, since it is larger than the sum of its proper divisors (174046177).

869439455 is a wasteful number, since it uses less digits than its factorization.

869439455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385.

The product of its digits is 4665600, while the sum is 53.

The square root of 869439455 is about 29486.2587487799. The cubic root of 869439455 is about 954.4352005152.

The spelling of 869439455 in words is "eight hundred sixty-nine million, four hundred thirty-nine thousand, four hundred fifty-five".