376678681 has 2 divisors, whose sum is σ = 376678682. Its totient is φ = 376678680.

The previous prime is 376678669. The next prime is 376678691. The reversal of 376678681 is 186876673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376166025 + 512656 = 19395^2 + 716^2 .

It is an emirp because it is prime and its reverse (186876673) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 376678681 - 2⁵ = 376678649 is a prime.

It is a super-2 number, since 2×376678681² = 283773657439799522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (376678661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188339340 + 188339341.

It is an arithmetic number, because the mean of its divisors is an integer number (188339341).

Almost surely, 2^376678681 is an apocalyptic number.

It is an amenable number.

376678681 is a deficient number, since it is larger than the sum of its proper divisors (1).

376678681 is an equidigital number, since it uses as much as digits as its factorization.

376678681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 376678681 is about 19408.2116899007. The cubic root of 376678681 is about 722.1992177192.

The spelling of 376678681 in words is "three hundred seventy-six million, six hundred seventy-eight thousand, six hundred eighty-one".