168477938 has 8 divisors (see below), whose sum is σ = 258880860. Its totient is φ = 82184320.

The previous prime is 168477923. The next prime is 168477943. The reversal of 168477938 is 839774861.

It can be written as a sum of positive squares in 2 ways, for example, as 162894169 + 5583769 = 12763^2 + 2363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 168477938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027223 + ... + 1027386.

Almost surely, 2^168477938 is an apocalyptic number.

168477938 is a deficient number, since it is larger than the sum of its proper divisors (90402922).

168477938 is a wasteful number, since it uses less digits than its factorization.

168477938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054652.

The product of its digits is 2032128, while the sum is 53.

The square root of 168477938 is about 12979.9051614409. The cubic root of 168477938 is about 552.3075917309.

The spelling of 168477938 in words is "one hundred sixty-eight million, four hundred seventy-seven thousand, nine hundred thirty-eight".