1617348797 has 2 divisors, whose sum is σ = 1617348798. Its totient is φ = 1617348796.

The previous prime is 1617348791. The next prime is 1617348823. The reversal of 1617348797 is 7978437161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1127213476 + 490135321 = 33574^2 + 22139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1617348797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1617348791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808674398 + 808674399.

It is an arithmetic number, because the mean of its divisors is an integer number (808674399).

Almost surely, 2^1617348797 is an apocalyptic number.

It is an amenable number.

1617348797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617348797 is an equidigital number, since it uses as much as digits as its factorization.

1617348797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 53.

The square root of 1617348797 is about 40216.2752750674. The cubic root of 1617348797 is about 1173.8192567983.

The spelling of 1617348797 in words is "one billion, six hundred seventeen million, three hundred forty-eight thousand, seven hundred ninety-seven".