168093890 has 16 divisors (see below), whose sum is σ = 315724608. Its totient is φ = 64314096.

The previous prime is 168093883. The next prime is 168093967. The reversal of 168093890 is 98390861.

168093890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365192 + ... + 365651.

It is an arithmetic number, because the mean of its divisors is an integer number (19732788).

Almost surely, 2^168093890 is an apocalyptic number.

168093890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168093890 is a deficient number, since it is larger than the sum of its proper divisors (147630718).

168093890 is a wasteful number, since it uses less digits than its factorization.

168093890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730873.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 168093890 is about 12965.1027762992. The cubic root of 168093890 is about 551.8876079549.

The spelling of 168093890 in words is "one hundred sixty-eight million, ninety-three thousand, eight hundred ninety".