379536821 has 2 divisors, whose sum is σ = 379536822. Its totient is φ = 379536820.

The previous prime is 379536779. The next prime is 379536841. The reversal of 379536821 is 128635973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378302500 + 1234321 = 19450^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 379536821 - 2⁶ = 379536757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379536841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189768410 + 189768411.

It is an arithmetic number, because the mean of its divisors is an integer number (189768411).

Almost surely, 2^379536821 is an apocalyptic number.

It is an amenable number.

379536821 is a deficient number, since it is larger than the sum of its proper divisors (1).

379536821 is an equidigital number, since it uses as much as digits as its factorization.

379536821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 379536821 is about 19481.7047765333. The cubic root of 379536821 is about 724.0212371547.

The spelling of 379536821 in words is "three hundred seventy-nine million, five hundred thirty-six thousand, eight hundred twenty-one".