885220769 has 4 divisors (see below), whose sum is σ = 886699200. Its totient is φ = 883742340.

The previous prime is 885220751. The next prime is 885220799. The reversal of 885220769 is 967022588.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-885220769 is a prime.

It is a super-2 number, since 2×885220769² = 1567231619737902722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (885220799) 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, 738317 + ... + 739514.

It is an arithmetic number, because the mean of its divisors is an integer number (221674800).

Almost surely, 2^885220769 is an apocalyptic number.

It is an amenable number.

885220769 is a deficient number, since it is larger than the sum of its proper divisors (1478431).

885220769 is a wasteful number, since it uses less digits than its factorization.

885220769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478430.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 885220769 is about 29752.6598642878. The cubic root of 885220769 is about 960.1753039959.

The spelling of 885220769 in words is "eight hundred eighty-five million, two hundred twenty thousand, seven hundred sixty-nine".