1386804953 has 2 divisors, whose sum is σ = 1386804954. Its totient is φ = 1386804952.

The previous prime is 1386804949. The next prime is 1386804977. The reversal of 1386804953 is 3594086831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1225210009 + 161594944 = 35003^2 + 12712^2 .

It is an emirp because it is prime and its reverse (3594086831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1386804953 - 2² = 1386804949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1386804898 and 1386804907.

It is not a weakly prime, because it can be changed into another prime (1386804253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693402476 + 693402477.

It is an arithmetic number, because the mean of its divisors is an integer number (693402477).

Almost surely, 2^1386804953 is an apocalyptic number.

It is an amenable number.

1386804953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386804953 is an equidigital number, since it uses as much as digits as its factorization.

1386804953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1386804953 is about 37239.8301956386. The cubic root of 1386804953 is about 1115.1632820057.

The spelling of 1386804953 in words is "one billion, three hundred eighty-six million, eight hundred four thousand, nine hundred fifty-three".