890381479 has 8 divisors (see below), whose sum is σ = 960048992. Its totient is φ = 820882080.

The previous prime is 890381447. The next prime is 890381501. The reversal of 890381479 is 974183098.

It is a happy number.

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 890381479 - 2⁵ = 890381447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890381279) 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 7 ways as a sum of consecutive naturals, for example, 30912 + ... + 52309.

It is an arithmetic number, because the mean of its divisors is an integer number (120006124).

Almost surely, 2^890381479 is an apocalyptic number.

890381479 is a deficient number, since it is larger than the sum of its proper divisors (69667513).

890381479 is a wasteful number, since it uses less digits than its factorization.

890381479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84057.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 890381479 is about 29839.2606979463. The cubic root of 890381479 is about 962.0375844543.

The spelling of 890381479 in words is "eight hundred ninety million, three hundred eighty-one thousand, four hundred seventy-nine".