9890146534 has 8 divisors (see below), whose sum is σ = 14849584200. Its totient is φ = 4940285136.

The previous prime is 9890146529. The next prime is 9890146549. The reversal of 9890146534 is 4356410989.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391484 + ... + 2395615.

It is an arithmetic number, because the mean of its divisors is an integer number (1856198025).

Almost surely, 2^9890146534 is an apocalyptic number.

9890146534 is a deficient number, since it is larger than the sum of its proper divisors (4959437666).

9890146534 is a wasteful number, since it uses less digits than its factorization.

9890146534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788134.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 9890146534 is about 99449.2158541233. The cubic root of 9890146534 is about 2146.5165537699.

The spelling of 9890146534 in words is "nine billion, eight hundred ninety million, one hundred forty-six thousand, five hundred thirty-four".