7521849 has 16 divisors (see below), whose sum is σ = 11328640. Its totient is φ = 4931280.

The previous prime is 7521823. The next prime is 7521859. The reversal of 7521849 is 9481257.

7521849 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7521849 - 2⁷ = 7521721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7521859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (708040).

Almost surely, 2^7521849 is an apocalyptic number.

It is an amenable number.

7521849 is a deficient number, since it is larger than the sum of its proper divisors (3806791).

7521849 is a wasteful number, since it uses less digits than its factorization.

7521849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637 (or 4631 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 7521849 is about 2742.5989499014. The cubic root of 7521849 is about 195.9332776499.

It can be divided in two parts, 752 and 1849, that added together give a square (2601 = 51²).

The spelling of 7521849 in words is "seven million, five hundred twenty-one thousand, eight hundred forty-nine".