985629331 has 4 divisors (see below), whose sum is σ = 986290992. Its totient is φ = 984967672.

The previous prime is 985629329. The next prime is 985629341. The reversal of 985629331 is 133926589.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133926589 = 2003 ⋅66863.

It is a cyclic number.

It is not a de Polignac number, because 985629331 - 2¹ = 985629329 is a prime.

It is a super-3 number, since 3×985629331³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985629301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328591 + ... + 331576.

It is an arithmetic number, because the mean of its divisors is an integer number (246572748).

Almost surely, 2^985629331 is an apocalyptic number.

985629331 is a deficient number, since it is larger than the sum of its proper divisors (661661).

985629331 is a wasteful number, since it uses less digits than its factorization.

985629331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661660.

The product of its digits is 349920, while the sum is 46.

The square root of 985629331 is about 31394.7341285127. The cubic root of 985629331 is about 995.1866457938.

The spelling of 985629331 in words is "nine hundred eighty-five million, six hundred twenty-nine thousand, three hundred thirty-one".