7681416 has 64 divisors (see below), whose sum is σ = 20710080. Its totient is φ = 2365440.

The previous prime is 7681411. The next prime is 7681417. The reversal of 7681416 is 6141867.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27196 + ... + 27476.

It is an arithmetic number, because the mean of its divisors is an integer number (323595).

Almost surely, 2^7681416 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 7681416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10355040).

7681416 is an abundant number, since it is smaller than the sum of its proper divisors (13028664).

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

7681416 is a wasteful number, since it uses less digits than its factorization.

7681416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 370 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 7681416 is about 2771.5367578295. The cubic root of 7681416 is about 197.3090907440.

The spelling of 7681416 in words is "seven million, six hundred eighty-one thousand, four hundred sixteen".