890194893 has 16 divisors (see below), whose sum is σ = 1360859136. Its totient is φ = 507043440.

The previous prime is 890194883. The next prime is 890194913. The reversal of 890194893 is 398491098.

It is a happy number.

It is not a de Polignac number, because 890194893 - 2¹² = 890190797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890194873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61621 + ... + 74682.

It is an arithmetic number, because the mean of its divisors is an integer number (85053696).

Almost surely, 2^890194893 is an apocalyptic number.

It is an amenable number.

890194893 is a deficient number, since it is larger than the sum of its proper divisors (470664243).

890194893 is a wasteful number, since it uses less digits than its factorization.

890194893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136624.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 890194893 is about 29836.1340156529. The cubic root of 890194893 is about 961.9703790713.

The spelling of 890194893 in words is "eight hundred ninety million, one hundred ninety-four thousand, eight hundred ninety-three".