7276820 has 12 divisors (see below), whose sum is σ = 15281364. Its totient is φ = 2910720.

The previous prime is 7276813. The next prime is 7276837. The reversal of 7276820 is 286727.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 6220036 = 1028^2 + 2494^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 181901 + ... + 181940.

It is an arithmetic number, because the mean of its divisors is an integer number (1273447).

Almost surely, 2^7276820 is an apocalyptic number.

It is an amenable number.

7276820 is an abundant number, since it is smaller than the sum of its proper divisors (8004544).

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

7276820 is a wasteful number, since it uses less digits than its factorization.

7276820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363850 (or 363848 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 7276820 is about 2697.5581550728. The cubic root of 7276820 is about 193.7821979095.

The spelling of 7276820 in words is "seven million, two hundred seventy-six thousand, eight hundred twenty".