1396625017 has 2 divisors, whose sum is σ = 1396625018. Its totient is φ = 1396625016.

The previous prime is 1396625003. The next prime is 1396625047. The reversal of 1396625017 is 7105266931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982258281 + 414366736 = 31341^2 + 20356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396625017 - 2¹⁹ = 1396100729 is a prime.

It is a super-2 number, since 2×1396625017² = 3901122876220500578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1396625047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698312508 + 698312509.

It is an arithmetic number, because the mean of its divisors is an integer number (698312509).

Almost surely, 2^1396625017 is an apocalyptic number.

It is an amenable number.

1396625017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396625017 is an equidigital number, since it uses as much as digits as its factorization.

1396625017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1396625017 is about 37371.4465467956. The cubic root of 1396625017 is about 1117.7892768087.

It can be divided in two parts, 13966 and 25017, that added together give a palindrome (38983).

The spelling of 1396625017 in words is "one billion, three hundred ninety-six million, six hundred twenty-five thousand, seventeen".