168477923 has 2 divisors, whose sum is σ = 168477924. Its totient is φ = 168477922.

The previous prime is 168477893. The next prime is 168477943. The reversal of 168477923 is 329774861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168477923 - 2¹⁴ = 168461539 is a prime.

It is not a weakly prime, because it can be changed into another prime (168477943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84238961 + 84238962.

It is an arithmetic number, because the mean of its divisors is an integer number (84238962).

Almost surely, 2^168477923 is an apocalyptic number.

168477923 is a deficient number, since it is larger than the sum of its proper divisors (1).

168477923 is an equidigital number, since it uses as much as digits as its factorization.

168477923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 168477923 is about 12979.9045836246. The cubic root of 168477923 is about 552.3075753398.

The spelling of 168477923 in words is "one hundred sixty-eight million, four hundred seventy-seven thousand, nine hundred twenty-three".