7628885 has 16 divisors (see below), whose sum is σ = 10333440. Its totient is φ = 5355840.

The previous prime is 7628867. The next prime is 7628897. The reversal of 7628885 is 5888267.

It is not a de Polignac number, because 7628885 - 2⁸ = 7628629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (645840).

Almost surely, 2^7628885 is an apocalyptic number.

7628885 is the 1595-th octagonal number.

It is an amenable number.

7628885 is a deficient number, since it is larger than the sum of its proper divisors (2704555).

7628885 is a wasteful number, since it uses less digits than its factorization.

7628885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828.

The product of its digits is 215040, while the sum is 44.

The square root of 7628885 is about 2762.0436274614. The cubic root of 7628885 is about 196.8582814391.

The spelling of 7628885 in words is "seven million, six hundred twenty-eight thousand, eight hundred eighty-five".