889442291 has 8 divisors (see below), whose sum is σ = 893661024. Its totient is φ = 885231360.

The previous prime is 889442249. The next prime is 889442303. The reversal of 889442291 is 192244988.

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 889442291 - 2¹⁸ = 889180147 is a prime.

It is a super-2 number, since 2×889442291² = 1582215178038657362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889442221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426371 + ... + 428451.

It is an arithmetic number, because the mean of its divisors is an integer number (111707628).

Almost surely, 2^889442291 is an apocalyptic number.

889442291 is a deficient number, since it is larger than the sum of its proper divisors (4218733).

889442291 is a wasteful number, since it uses less digits than its factorization.

889442291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901.

The product of its digits is 331776, while the sum is 47.

The square root of 889442291 is about 29823.5190914821. The cubic root of 889442291 is about 961.6992081330.

The spelling of 889442291 in words is "eight hundred eighty-nine million, four hundred forty-two thousand, two hundred ninety-one".