9885002091 has 8 divisors (see below), whose sum is σ = 13192941120. Its totient is φ = 6583532232.

The previous prime is 9885002081. The next prime is 9885002093. The reversal of 9885002091 is 1902005889.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9885002091 - 2⁶ = 9885002027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9885002093) 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, 1613725 + ... + 1619838.

It is an arithmetic number, because the mean of its divisors is an integer number (1649117640).

Almost surely, 2^9885002091 is an apocalyptic number.

9885002091 is a deficient number, since it is larger than the sum of its proper divisors (3307939029).

9885002091 is a wasteful number, since it uses less digits than its factorization.

9885002091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234585.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 9885002091 is about 99423.3478162951. The cubic root of 9885002091 is about 2146.1443130010.

The spelling of 9885002091 in words is "nine billion, eight hundred eighty-five million, two thousand, ninety-one".