7481889 has 10 divisors (see below), whose sum is σ = 11176770. Its totient is φ = 4987872.

The previous prime is 7481879. The next prime is 7481911. The reversal of 7481889 is 9881847.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 810000 = 2583^2 + 900^2 .

It is not a de Polignac number, because 7481889 - 2⁵ = 7481857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7481809) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 46104 + ... + 46265.

It is an arithmetic number, because the mean of its divisors is an integer number (1117677).

Almost surely, 2^7481889 is an apocalyptic number.

It is an amenable number.

7481889 is a deficient number, since it is larger than the sum of its proper divisors (3694881).

7481889 is an equidigital number, since it uses as much as digits as its factorization.

7481889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92381 (or 92372 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 7481889 is about 2735.3041878373. The cubic root of 7481889 is about 195.5856946894.

The spelling of 7481889 in words is "seven million, four hundred eighty-one thousand, eight hundred eighty-nine".