820348 has 12 divisors (see below), whose sum is σ = 1457512. Its totient is φ = 403920.

The previous prime is 820343. The next prime is 820349. The reversal of 820348 is 843028.

It is a super-2 number, since 2×820348² = 1345941682208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263 + ... + 1798.

2⁸²⁰³⁴⁸ is an apocalyptic number.

It is an amenable number.

820348 is a deficient number, since it is larger than the sum of its proper divisors (637164).

820348 is a wasteful number, since it uses less digits than its factorization.

820348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3130 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 820348 is about 905.7306442867. The cubic root of 820348 is about 93.6122551952.

The spelling of 820348 in words is "eight hundred twenty thousand, three hundred forty-eight".