376821 has 12 divisors (see below), whose sum is σ = 549900. Its totient is φ = 248640.

The previous prime is 376819. The next prime is 376823. The reversal of 376821 is 128673.

It is an interprime number because it is at equal distance from previous prime (376819) and next prime (376823).

It can be written as a sum of positive squares in 2 ways, for example, as 140625 + 236196 = 375^2 + 486^2 .

It is not a de Polignac number, because 376821 - 2¹ = 376819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1201 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (45825).

2³⁷⁶⁸²¹ is an apocalyptic number.

It is an amenable number.

376821 is a deficient number, since it is larger than the sum of its proper divisors (173079).

376821 is a wasteful number, since it uses less digits than its factorization.

376821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 433 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 376821 is about 613.8574753149. The cubic root of 376821 is about 72.2290161481.

The spelling of 376821 in words is "three hundred seventy-six thousand, eight hundred twenty-one".