7820616 has 32 divisors (see below), whose sum is σ = 20082240. Its totient is φ = 2536128.

The previous prime is 7820611. The next prime is 7820623. The reversal of 7820616 is 6160287.

It is a happy number.

It is a super-2 number, since 2×7820616² = 122324069238912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7820611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3516 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (627570).

Almost surely, 2^7820616 is an apocalyptic number.

It is an amenable number.

7820616 is an abundant number, since it is smaller than the sum of its proper divisors (12261624).

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

7820616 is a wasteful number, since it uses less digits than its factorization.

7820616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7820616 is about 2796.5364292281. The cubic root of 7820616 is about 198.4938188999.

The spelling of 7820616 in words is "seven million, eight hundred twenty thousand, six hundred sixteen".