85969380 has 96 divisors (see below), whose sum is σ = 278691840. Its totient is φ = 19393920.

The previous prime is 85969361. The next prime is 85969381. The reversal of 85969380 is 8396958.

It is not an unprimeable number, because it can be changed into a prime (85969381) 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, 31885 + ... + 34475.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^85969380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85969380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139345920).

85969380 is an abundant number, since it is smaller than the sum of its proper divisors (192722460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85969380 is a wasteful number, since it uses less digits than its factorization.

85969380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 85969380 is about 9271.9674287607. The cubic root of 85969380 is about 441.3481036567.

The spelling of 85969380 in words is "eighty-five million, nine hundred sixty-nine thousand, three hundred eighty".