7700880 has 80 divisors (see below), whose sum is σ = 26051904. Its totient is φ = 1866240.

The previous prime is 7700879. The next prime is 7700911. The reversal of 7700880 is 880077.

It is a happy number.

7700880 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182 + ... + 4098.

Almost surely, 2^7700880 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 7700880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13025952).

7700880 is an abundant number, since it is smaller than the sum of its proper divisors (18351024).

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

7700880 is a wasteful number, since it uses less digits than its factorization.

7700880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 7700880 is about 2775.0459455656. The cubic root of 7700880 is about 197.4756045283.

Subtracting from 7700880 its sum of digits (30), we obtain a triangular number (7700850 = T₃₉₂₄).

The spelling of 7700880 in words is "seven million, seven hundred thousand, eight hundred eighty".