7487533 has 4 divisors (see below), whose sum is σ = 7495488. Its totient is φ = 7479580.

The previous prime is 7487507. The next prime is 7487549. The reversal of 7487533 is 3357847.

7487533 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7487533 - 2¹³ = 7479341 is a prime.

It is a Duffinian number.

7487533 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7487492 and 7487501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7487503) 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, 2341 + ... + 4522.

It is an arithmetic number, because the mean of its divisors is an integer number (1873872).

Almost surely, 2^7487533 is an apocalyptic number.

It is an amenable number.

7487533 is a deficient number, since it is larger than the sum of its proper divisors (7955).

7487533 is a wasteful number, since it uses less digits than its factorization.

7487533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7954.

The product of its digits is 70560, while the sum is 37.

The square root of 7487533 is about 2736.3356884710. The cubic root of 7487533 is about 195.6348626738.

It can be divided in two parts, 748 and 7533, that added together give a square (8281 = 91²).

The spelling of 7487533 in words is "seven million, four hundred eighty-seven thousand, five hundred thirty-three".