771248 has 40 divisors (see below), whose sum is σ = 1636800. Its totient is φ = 350784.

The previous prime is 771233. The next prime is 771269. The reversal of 771248 is 842177.

It is a self number, because there is not a number n which added to its sum of digits gives 771248.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 771248.

It is an unprimeable number.

771248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13043 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (40920).

2⁷⁷¹²⁴⁸ 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 771248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818400).

771248 is an abundant number, since it is smaller than the sum of its proper divisors (865552).

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

771248 is a wasteful number, since it uses less digits than its factorization.

771248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 123 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 771248 is about 878.2072648299. The cubic root of 771248 is about 91.7060561663.

The spelling of 771248 in words is "seven hundred seventy-one thousand, two hundred forty-eight".