168077449 has 4 divisors (see below), whose sum is σ = 169148164. Its totient is φ = 167006736.

The previous prime is 168077423. The next prime is 168077597. The reversal of 168077449 is 944770861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944770861 = 4507 ⋅209623.

It can be written as a sum of positive squares in 2 ways, for example, as 44156025 + 123921424 = 6645^2 + 11132^2 .

It is a cyclic number.

It is not a de Polignac number, because 168077449 - 2⁷ = 168077321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168077399 and 168077408.

It is not an unprimeable number, because it can be changed into a prime (168077149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535122 + ... + 535435.

It is an arithmetic number, because the mean of its divisors is an integer number (42287041).

Almost surely, 2^168077449 is an apocalyptic number.

It is an amenable number.

168077449 is a deficient number, since it is larger than the sum of its proper divisors (1070715).

168077449 is a wasteful number, since it uses less digits than its factorization.

168077449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070714.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 168077449 is about 12964.4687126006. The cubic root of 168077449 is about 551.8696142808.

The spelling of 168077449 in words is "one hundred sixty-eight million, seventy-seven thousand, four hundred forty-nine".