880641 has 6 divisors (see below), whose sum is σ = 1272050. Its totient is φ = 587088.

The previous prime is 880603. The next prime is 880661. The reversal of 880641 is 146088.

It can be written as a sum of positive squares in only one way, i.e., 848241 + 32400 = 921^2 + 180^2 .

It is not a de Polignac number, because 880641 - 2⁷ = 880513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (880661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48916 + ... + 48933.

It is a Proth number, since it is equal to 215 ⋅ 2¹² + 1 and 215 < 2¹².

2⁸⁸⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

880641 is a deficient number, since it is larger than the sum of its proper divisors (391409).

880641 is a wasteful number, since it uses less digits than its factorization.

880641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97855 (or 97852 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 880641 is about 938.4247439193. The cubic root of 880641 is about 95.8516589194.

It can be divided in two parts, 880 and 641, that added together give a square (1521 = 39²).

The spelling of 880641 in words is "eight hundred eighty thousand, six hundred forty-one".