1326695977 has 2 divisors, whose sum is σ = 1326695978. Its totient is φ = 1326695976.

The previous prime is 1326695969. The next prime is 1326696017. The reversal of 1326695977 is 7795966231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1153009936 + 173686041 = 33956^2 + 13179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326695977 - 2³ = 1326695969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326695927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663347988 + 663347989.

It is an arithmetic number, because the mean of its divisors is an integer number (663347989).

Almost surely, 2^1326695977 is an apocalyptic number.

It is an amenable number.

1326695977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326695977 is an equidigital number, since it uses as much as digits as its factorization.

1326695977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 55.

The square root of 1326695977 is about 36423.8380322557. The cubic root of 1326695977 is about 1098.8130383954.

The spelling of 1326695977 in words is "one billion, three hundred twenty-six million, six hundred ninety-five thousand, nine hundred seventy-seven".