880391655 has 48 divisors (see below), whose sum is σ = 1792810656. Its totient is φ = 394018560.

The previous prime is 880391641. The next prime is 880391713. The reversal of 880391655 is 556193088.

It is not a de Polignac number, because 880391655 - 2⁵ = 880391623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 880391655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61972 + ... + 74841.

It is an arithmetic number, because the mean of its divisors is an integer number (37350222).

Almost surely, 2^880391655 is an apocalyptic number.

880391655 is an abundant number, since it is smaller than the sum of its proper divisors (912419001).

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

880391655 is a wasteful number, since it uses less digits than its factorization.

880391655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136848 (or 136845 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 880391655 is about 29671.3945577218. The cubic root of 880391655 is about 958.4261157469.

The spelling of 880391655 in words is "eight hundred eighty million, three hundred ninety-one thousand, six hundred fifty-five".