880088861 has 16 divisors (see below), whose sum is σ = 944502768. Its totient is φ = 817152000.

The previous prime is 880088849. The next prime is 880088863. The reversal of 880088861 is 168880088.

It can be written as a sum of positive squares in 8 ways, for example, as 73188025 + 806900836 = 8555^2 + 28406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-880088861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880088863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462011 + ... + 463911.

It is an arithmetic number, because the mean of its divisors is an integer number (59031423).

Almost surely, 2^880088861 is an apocalyptic number.

It is an amenable number.

880088861 is a deficient number, since it is larger than the sum of its proper divisors (64413907).

880088861 is a wasteful number, since it uses less digits than its factorization.

880088861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 196608, while the sum is 47.

The square root of 880088861 is about 29666.2916624239. The cubic root of 880088861 is about 958.3162256572.

It can be divided in two parts, 88008 and 8861, that added together give a palindrome (96869).

The spelling of 880088861 in words is "eight hundred eighty million, eighty-eight thousand, eight hundred sixty-one".