1326908977 has 2 divisors, whose sum is σ = 1326908978. Its totient is φ = 1326908976.

The previous prime is 1326908963. The next prime is 1326908981. The reversal of 1326908977 is 7798096231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1051315776 + 275593201 = 32424^2 + 16601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326908977 - 2¹¹ = 1326906929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326908927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663454488 + 663454489.

It is an arithmetic number, because the mean of its divisors is an integer number (663454489).

Almost surely, 2^1326908977 is an apocalyptic number.

It is an amenable number.

1326908977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326908977 is an equidigital number, since it uses as much as digits as its factorization.

1326908977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 1326908977 is about 36426.7618242413. The cubic root of 1326908977 is about 1098.8718397729.

The spelling of 1326908977 in words is "one billion, three hundred twenty-six million, nine hundred eight thousand, nine hundred seventy-seven".