618368697 has 6 divisors (see below), whose sum is σ = 893199242. Its totient is φ = 412245792.

The previous prime is 618368689. The next prime is 618368701. The reversal of 618368697 is 796863816.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 384003216 + 234365481 = 19596^2 + 15309^2 .

It is not a de Polignac number, because 618368697 - 2³ = 618368689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618368617) 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 5 ways as a sum of consecutive naturals, for example, 34353808 + ... + 34353825.

Almost surely, 2^618368697 is an apocalyptic number.

It is an amenable number.

618368697 is a deficient number, since it is larger than the sum of its proper divisors (274830545).

618368697 is a wasteful number, since it uses less digits than its factorization.

618368697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68707639 (or 68707636 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 618368697 is about 24867.0202678166. The cubic root of 618368697 is about 851.9533838477.

The spelling of 618368697 in words is "six hundred eighteen million, three hundred sixty-eight thousand, six hundred ninety-seven".