7381885 has 8 divisors (see below), whose sum is σ = 10123776. Its totient is φ = 5061840.

The previous prime is 7381879. The next prime is 7381889. The reversal of 7381885 is 5881837.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7381885 - 2³ = 7381877 is a prime.

It is a Duffinian number.

7381885 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105421 + ... + 105490.

It is an arithmetic number, because the mean of its divisors is an integer number (1265472).

Almost surely, 2^7381885 is an apocalyptic number.

It is an amenable number.

7381885 is a deficient number, since it is larger than the sum of its proper divisors (2741891).

7381885 is a wasteful number, since it uses less digits than its factorization.

7381885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210923.

The product of its digits is 53760, while the sum is 40.

The square root of 7381885 is about 2716.9624583347. The cubic root of 7381885 is about 194.7103743390.

The spelling of 7381885 in words is "seven million, three hundred eighty-one thousand, eight hundred eighty-five".