376781213 has 2 divisors, whose sum is σ = 376781214. Its totient is φ = 376781212.

The previous prime is 376781203. The next prime is 376781219. The reversal of 376781213 is 312187673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375855769 + 925444 = 19387^2 + 962^2 .

It is a cyclic number.

It is not a de Polignac number, because 376781213 - 2¹⁰ = 376780189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376781219) 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, 188390606 + 188390607.

It is an arithmetic number, because the mean of its divisors is an integer number (188390607).

Almost surely, 2^376781213 is an apocalyptic number.

It is an amenable number.

376781213 is a deficient number, since it is larger than the sum of its proper divisors (1).

376781213 is an equidigital number, since it uses as much as digits as its factorization.

376781213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 376781213 is about 19410.8529694086. The cubic root of 376781213 is about 722.2647393572.

The spelling of 376781213 in words is "three hundred seventy-six million, seven hundred eighty-one thousand, two hundred thirteen".