85331930 has 16 divisors (see below), whose sum is σ = 153891144. Its totient is φ = 34067520.

The previous prime is 85331927. The next prime is 85331969. The reversal of 85331930 is 3913358.

It can be written as a sum of positive squares in 4 ways, for example, as 67683529 + 17648401 = 8227^2 + 4201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477 + ... + 13296.

Almost surely, 2^85331930 is an apocalyptic number.

85331930 is a deficient number, since it is larger than the sum of its proper divisors (68559214).

85331930 is a wasteful number, since it uses less digits than its factorization.

85331930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16321.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 85331930 is about 9237.5283490769. The cubic root of 85331930 is about 440.2545531183.

The spelling of 85331930 in words is "eighty-five million, three hundred thirty-one thousand, nine hundred thirty".