977868379 has 2 divisors, whose sum is σ = 977868380. Its totient is φ = 977868378.

The previous prime is 977868343. The next prime is 977868389. The reversal of 977868379 is 973868779.

977868379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 977868379 - 2⁷ = 977868251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 977868379.

It is not a weakly prime, because it can be changed into another prime (977868389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488934189 + 488934190.

It is an arithmetic number, because the mean of its divisors is an integer number (488934190).

Almost surely, 2^977868379 is an apocalyptic number.

977868379 is a deficient number, since it is larger than the sum of its proper divisors (1).

977868379 is an equidigital number, since it uses as much as digits as its factorization.

977868379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32006016, while the sum is 64.

The square root of 977868379 is about 31270.8870836758. The cubic root of 977868379 is about 992.5676906291.

The spelling of 977868379 in words is "nine hundred seventy-seven million, eight hundred sixty-eight thousand, three hundred seventy-nine".