869427776 has 168 divisors, whose sum is σ = 2112629760. Its totient is φ = 353590272.

The previous prime is 869427773. The next prime is 869427803. The reversal of 869427776 is 677724968.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869427773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6845825 + ... + 6845951.

Almost surely, 2^869427776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869427776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056314880).

869427776 is an abundant number, since it is smaller than the sum of its proper divisors (1243201984).

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

869427776 is a wasteful number, since it uses less digits than its factorization.

869427776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 232 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 56.

The square root of 869427776 is about 29486.0607067136. The cubic root of 869427776 is about 954.4309269193.

The spelling of 869427776 in words is "eight hundred sixty-nine million, four hundred twenty-seven thousand, seven hundred seventy-six".