985158471 has 32 divisors (see below), whose sum is σ = 1504622592. Its totient is φ = 567531360.

The previous prime is 985158463. The next prime is 985158491. The reversal of 985158471 is 174851589.

It is a happy number.

It is not a de Polignac number, because 985158471 - 2³ = 985158463 is a prime.

It is a super-3 number, since 3×985158471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 985158471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985158491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119736 + ... + 127698.

It is an arithmetic number, because the mean of its divisors is an integer number (47019456).

Almost surely, 2^985158471 is an apocalyptic number.

985158471 is a deficient number, since it is larger than the sum of its proper divisors (519464121).

985158471 is a wasteful number, since it uses less digits than its factorization.

985158471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163.

The product of its digits is 403200, while the sum is 48.

The square root of 985158471 is about 31387.2342043704. The cubic root of 985158471 is about 995.0281452944.

The spelling of 985158471 in words is "nine hundred eighty-five million, one hundred fifty-eight thousand, four hundred seventy-one".