881620 has 24 divisors (see below), whose sum is σ = 1961064. Its totient is φ = 331776.

The previous prime is 881611. The next prime is 881641. The reversal of 881620 is 26188.

It can be written as a sum of positive squares in 4 ways, for example, as 219024 + 662596 = 468^2 + 814^2 .

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, 957 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (81711).

2⁸⁸¹⁶²⁰ is an apocalyptic number.

It is an amenable number.

881620 is an abundant number, since it is smaller than the sum of its proper divisors (1079444).

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

881620 is a wasteful number, since it uses less digits than its factorization.

881620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619 (or 2617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 881620 is about 938.9462178421. The cubic root of 881620 is about 95.8871648831.

It can be divided in two parts, 8816 and 20, that added together give a square (8836 = 94²).

The spelling of 881620 in words is "eight hundred eighty-one thousand, six hundred twenty".