7647252 has 12 divisors (see below), whose sum is σ = 17843616. Its totient is φ = 2549080.

The previous prime is 7647223. The next prime is 7647259. The reversal of 7647252 is 2527467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7647259) 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, 318624 + ... + 318647.

It is an arithmetic number, because the mean of its divisors is an integer number (1486968).

Almost surely, 2^7647252 is an apocalyptic number.

It is an amenable number.

7647252 is an abundant number, since it is smaller than the sum of its proper divisors (10196364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7647252 is a wasteful number, since it uses less digits than its factorization.

7647252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637278 (or 637276 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 7647252 is about 2765.3665218195. The cubic root of 7647252 is about 197.0161375462.

The spelling of 7647252 in words is "seven million, six hundred forty-seven thousand, two hundred fifty-two".