7661712 has 80 divisors (see below), whose sum is σ = 21585920. Its totient is φ = 2332800.

The previous prime is 7661707. The next prime is 7661723. The reversal of 7661712 is 2171667.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7661712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28137 + ... + 28407.

It is an arithmetic number, because the mean of its divisors is an integer number (269824).

Almost surely, 2^7661712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7661712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10792960).

7661712 is an abundant number, since it is smaller than the sum of its proper divisors (13924208).

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

7661712 is a wasteful number, since it uses less digits than its factorization.

7661712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 326 counting only the distinct ones).

The product of its digits is 3528, while the sum is 30.

The square root of 7661712 is about 2767.9797687122. The cubic root of 7661712 is about 197.1402370102.

The spelling of 7661712 in words is "seven million, six hundred sixty-one thousand, seven hundred twelve".