7620620 has 48 divisors (see below), whose sum is σ = 18930240. Its totient is φ = 2521344.

The previous prime is 7620619. The next prime is 7620671. The reversal of 7620620 is 260267.

It is a happy number.

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, 3122 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (394380).

Almost surely, 2^7620620 is an apocalyptic number.

7620620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7620620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9465120).

7620620 is an abundant number, since it is smaller than the sum of its proper divisors (11309620).

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

7620620 is a wasteful number, since it uses less digits than its factorization.

7620620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 7620620 is about 2760.5470472354. The cubic root of 7620620 is about 196.7871648161.

Adding to 7620620 its reverse (260267), we get a palindrome (7880887).

The spelling of 7620620 in words is "seven million, six hundred twenty thousand, six hundred twenty".