890368855 has 4 divisors (see below), whose sum is σ = 1068442632. Its totient is φ = 712295080.

The previous prime is 890368819. The next prime is 890368859. The reversal of 890368855 is 558863098.

It is a happy number.

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

It is not a de Polignac number, because 890368855 - 2¹⁹ = 889844567 is a prime.

It is a super-2 number, since 2×890368855² = 1585513395908022050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890368859) 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 3 ways as a sum of consecutive naturals, for example, 89036881 + ... + 89036890.

It is an arithmetic number, because the mean of its divisors is an integer number (267110658).

Almost surely, 2^890368855 is an apocalyptic number.

890368855 is a deficient number, since it is larger than the sum of its proper divisors (178073777).

890368855 is a wasteful number, since it uses less digits than its factorization.

890368855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178073776.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The square root of 890368855 is about 29839.0491638055. The cubic root of 890368855 is about 962.0330377815.

The spelling of 890368855 in words is "eight hundred ninety million, three hundred sixty-eight thousand, eight hundred fifty-five".