7612820 has 12 divisors (see below), whose sum is σ = 15986964. Its totient is φ = 3045120.

The previous prime is 7612799. The next prime is 7612831. The reversal of 7612820 is 282167.

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 3818116 = 1948^2 + 1954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7612820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190301 + ... + 190340.

It is an arithmetic number, because the mean of its divisors is an integer number (1332247).

Almost surely, 2^7612820 is an apocalyptic number.

It is an amenable number.

7612820 is an abundant number, since it is smaller than the sum of its proper divisors (8374144).

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

7612820 is a wasteful number, since it uses less digits than its factorization.

7612820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380650 (or 380648 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 7612820 is about 2759.1339220850. The cubic root of 7612820 is about 196.7200021323.

Adding to 7612820 its reverse (282167), we get a palindrome (7894987).

The spelling of 7612820 in words is "seven million, six hundred twelve thousand, eight hundred twenty".