168304937 has 2 divisors, whose sum is σ = 168304938. Its totient is φ = 168304936.

The previous prime is 168304933. The next prime is 168304943. The reversal of 168304937 is 739403861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143544361 + 24760576 = 11981^2 + 4976^2 .

It is a cyclic number.

It is not a de Polignac number, because 168304937 - 2² = 168304933 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 168304894 and 168304903.

It is not a weakly prime, because it can be changed into another prime (168304933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84152468 + 84152469.

It is an arithmetic number, because the mean of its divisors is an integer number (84152469).

Almost surely, 2^168304937 is an apocalyptic number.

It is an amenable number.

168304937 is a deficient number, since it is larger than the sum of its proper divisors (1).

168304937 is an equidigital number, since it uses as much as digits as its factorization.

168304937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 168304937 is about 12973.2392639618. The cubic root of 168304937 is about 552.1184819272.

The spelling of 168304937 in words is "one hundred sixty-eight million, three hundred four thousand, nine hundred thirty-seven".