7820298 has 12 divisors (see below), whose sum is σ = 16944018. Its totient is φ = 2606760.

The previous prime is 7820297. The next prime is 7820303. The reversal of 7820298 is 8920287.

It can be written as a sum of positive squares in only one way, i.e., 7306209 + 514089 = 2703^2 + 717^2 .

It is a super-2 number, since 2×7820298² = 122314121617608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7820297) 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 5 ways as a sum of consecutive naturals, for example, 217213 + ... + 217248.

Almost surely, 2^7820298 is an apocalyptic number.

7820298 is an abundant number, since it is smaller than the sum of its proper divisors (9123720).

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

7820298 is a wasteful number, since it uses less digits than its factorization.

7820298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434469 (or 434466 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7820298 is about 2796.4795726055. The cubic root of 7820298 is about 198.4911284942.

It can be divided in two parts, 7820 and 298, that added together give a palindrome (8118).

The spelling of 7820298 in words is "seven million, eight hundred twenty thousand, two hundred ninety-eight".