190093989 has 8 divisors (see below), whose sum is σ = 253526112. Its totient is φ = 126695600.

The previous prime is 190093979. The next prime is 190094027. The reversal of 190093989 is 989390091.

190093989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 190093989 - 2⁴ = 190093973 is a prime.

It is a super-2 number, since 2×190093989² = 72271449307864242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190093979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11347 + ... + 22559.

It is an arithmetic number, because the mean of its divisors is an integer number (31690764).

Almost surely, 2^190093989 is an apocalyptic number.

It is an amenable number.

190093989 is a deficient number, since it is larger than the sum of its proper divisors (63432123).

190093989 is a wasteful number, since it uses less digits than its factorization.

190093989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16867.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 190093989 is about 13787.4576699260. The cubic root of 190093989 is about 574.9844875462.

The spelling of 190093989 in words is "one hundred ninety million, ninety-three thousand, nine hundred eighty-nine".