1617079969 has 2 divisors, whose sum is σ = 1617079970. Its totient is φ = 1617079968.

The previous prime is 1617079963. The next prime is 1617079999. The reversal of 1617079969 is 9699707161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1606967569 + 10112400 = 40087^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1617079969 - 2¹¹ = 1617077921 is a prime.

It is a super-2 number, since 2×1617079969² = 5229895252282081922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1617079963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808539984 + 808539985.

It is an arithmetic number, because the mean of its divisors is an integer number (808539985).

Almost surely, 2^1617079969 is an apocalyptic number.

It is an amenable number.

1617079969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617079969 is an equidigital number, since it uses as much as digits as its factorization.

1617079969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The square root of 1617079969 is about 40212.9328574776. The cubic root of 1617079969 is about 1173.7542176493.

The spelling of 1617079969 in words is "one billion, six hundred seventeen million, seventy-nine thousand, nine hundred sixty-nine".