376976981 has 2 divisors, whose sum is σ = 376976982. Its totient is φ = 376976980.

The previous prime is 376976959. The next prime is 376977059. The reversal of 376976981 is 189679673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311204881 + 65772100 = 17641^2 + 8110^2 .

It is a cyclic number.

It is not a de Polignac number, because 376976981 - 2⁶ = 376976917 is a prime.

It is a super-2 number, since 2×376976981² = 284223288407748722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376976911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188488490 + 188488491.

It is an arithmetic number, because the mean of its divisors is an integer number (188488491).

Almost surely, 2^376976981 is an apocalyptic number.

It is an amenable number.

376976981 is a deficient number, since it is larger than the sum of its proper divisors (1).

376976981 is an equidigital number, since it uses as much as digits as its factorization.

376976981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 56.

The square root of 376976981 is about 19415.8950604910. The cubic root of 376976981 is about 722.3898091472.

The spelling of 376976981 in words is "three hundred seventy-six million, nine hundred seventy-six thousand, nine hundred eighty-one".