7563213 has 20 divisors (see below), whose sum is σ = 12913120. Its totient is φ = 4321512.

The previous prime is 7563191. The next prime is 7563233. The reversal of 7563213 is 3123657.

It is a happy number.

It is not a de Polignac number, because 7563213 - 2⁹ = 7562701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

7563213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7563233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6103 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (645656).

Almost surely, 2^7563213 is an apocalyptic number.

It is an amenable number.

7563213 is a deficient number, since it is larger than the sum of its proper divisors (5349907).

7563213 is a wasteful number, since it uses less digits than its factorization.

7563213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13358 (or 13349 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 7563213 is about 2750.1296333082. The cubic root of 7563213 is about 196.2917787370.

It can be divided in two parts, 7563 and 213, that added together give a 5-th power (7776 = 6⁵).

The spelling of 7563213 in words is "seven million, five hundred sixty-three thousand, two hundred thirteen".