890363889 has 6 divisors (see below), whose sum is σ = 1286081186. Its totient is φ = 593575920.

The previous prime is 890363863. The next prime is 890363897. The reversal of 890363889 is 988363098.

It can be written as a sum of positive squares in only one way, i.e., 875153889 + 15210000 = 29583^2 + 3900^2 .

It is not a de Polignac number, because 890363889 - 2¹¹ = 890361841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890363809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49464652 + ... + 49464669.

Almost surely, 2^890363889 is an apocalyptic number.

It is an amenable number.

890363889 is a deficient number, since it is larger than the sum of its proper divisors (395717297).

890363889 is a wasteful number, since it uses less digits than its factorization.

890363889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98929327 (or 98929324 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 890363889 is about 29838.9659505821. The cubic root of 890363889 is about 962.0312492100.

The spelling of 890363889 in words is "eight hundred ninety million, three hundred sixty-three thousand, eight hundred eighty-nine".