869030505 has 64 divisors (see below), whose sum is σ = 1842462720. Its totient is φ = 379988928.

The previous prime is 869030489. The next prime is 869030509. The reversal of 869030505 is 505030968.

It is not a de Polignac number, because 869030505 - 2⁴ = 869030489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869030505.

It is not an unprimeable number, because it can be changed into a prime (869030509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1744 + ... + 41726.

It is an arithmetic number, because the mean of its divisors is an integer number (28788480).

Almost surely, 2^869030505 is an apocalyptic number.

It is an amenable number.

869030505 is an abundant number, since it is smaller than the sum of its proper divisors (973432215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869030505 is a wasteful number, since it uses less digits than its factorization.

869030505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40027 (or 40021 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 869030505 is about 29479.3233470512. The cubic root of 869030505 is about 954.2855341658.

The spelling of 869030505 in words is "eight hundred sixty-nine million, thirty thousand, five hundred five".