168606747 has 12 divisors (see below), whose sum is σ = 244618920. Its totient is φ = 111907968.

The previous prime is 168606701. The next prime is 168606787. The reversal of 168606747 is 747606861.

It is not a de Polignac number, because 168606747 - 2²³ = 160218139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168606787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39222 + ... + 43307.

It is an arithmetic number, because the mean of its divisors is an integer number (20384910).

Almost surely, 2^168606747 is an apocalyptic number.

168606747 is a deficient number, since it is larger than the sum of its proper divisors (76012173).

168606747 is a wasteful number, since it uses less digits than its factorization.

168606747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82762 (or 82759 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 168606747 is about 12984.8660755512. The cubic root of 168606747 is about 552.4483105824.

The spelling of 168606747 in words is "one hundred sixty-eight million, six hundred six thousand, seven hundred forty-seven".