168477697 has 2 divisors, whose sum is σ = 168477698. Its totient is φ = 168477696.

The previous prime is 168477677. The next prime is 168477707. The reversal of 168477697 is 796774861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165791376 + 2686321 = 12876^2 + 1639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168477697 is a prime.

It is not a weakly prime, because it can be changed into another prime (168477677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84238848 + 84238849.

It is an arithmetic number, because the mean of its divisors is an integer number (84238849).

Almost surely, 2^168477697 is an apocalyptic number.

It is an amenable number.

168477697 is a deficient number, since it is larger than the sum of its proper divisors (1).

168477697 is an equidigital number, since it uses as much as digits as its factorization.

168477697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The square root of 168477697 is about 12979.8958778566. The cubic root of 168477697 is about 552.3073283805.

The spelling of 168477697 in words is "one hundred sixty-eight million, four hundred seventy-seven thousand, six hundred ninety-seven".