890381011 has 4 divisors (see below), whose sum is σ = 958871872. Its totient is φ = 821890152.

The previous prime is 890380979. The next prime is 890381017. The reversal of 890381011 is 110183098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 890381011 - 2⁵ = 890380979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890381017) 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 3 ways as a sum of consecutive naturals, for example, 34245411 + ... + 34245436.

It is an arithmetic number, because the mean of its divisors is an integer number (239717968).

Almost surely, 2^890381011 is an apocalyptic number.

890381011 is a deficient number, since it is larger than the sum of its proper divisors (68490861).

890381011 is a wasteful number, since it uses less digits than its factorization.

890381011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68490860.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 890381011 is about 29839.2528559279. The cubic root of 890381011 is about 962.0374158997.

The spelling of 890381011 in words is "eight hundred ninety million, three hundred eighty-one thousand, eleven".