1617681067 has 4 divisors (see below), whose sum is σ = 1629489096. Its totient is φ = 1605873040.

The previous prime is 1617681061. The next prime is 1617681073. The reversal of 1617681067 is 7601867161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7601867161 = 7 ⋅1085981023.

It is an interprime number because it is at equal distance from previous prime (1617681061) and next prime (1617681073).

It is a cyclic number.

It is not a de Polignac number, because 1617681067 - 2³ = 1617681059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1617681061) 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 in 3 ways as a sum of consecutive naturals, for example, 5903809 + ... + 5904082.

It is an arithmetic number, because the mean of its divisors is an integer number (407372274).

Almost surely, 2^1617681067 is an apocalyptic number.

1617681067 is a deficient number, since it is larger than the sum of its proper divisors (11808029).

1617681067 is a wasteful number, since it uses less digits than its factorization.

1617681067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11808028.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1617681067 is about 40220.4061018782. The cubic root of 1617681067 is about 1173.8996348877.

The spelling of 1617681067 in words is "one billion, six hundred seventeen million, six hundred eighty-one thousand, sixty-seven".