7620880 has 20 divisors (see below), whose sum is σ = 17718732. Its totient is φ = 3048320.

The previous prime is 7620871. The next prime is 7620883. The reversal of 7620880 is 880267.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 5992704 = 1276^2 + 2448^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (7620883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47551 + ... + 47710.

Almost surely, 2^7620880 is an apocalyptic number.

It is an amenable number.

7620880 is an abundant number, since it is smaller than the sum of its proper divisors (10097852).

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

7620880 is a wasteful number, since it uses less digits than its factorization.

7620880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95274 (or 95268 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 7620880 is about 2760.5941389491. The cubic root of 7620880 is about 196.7894027828.

The spelling of 7620880 in words is "seven million, six hundred twenty thousand, eight hundred eighty".