85691034 has 128 divisors (see below), whose sum is σ = 228130560. Its totient is φ = 23794560.

The previous prime is 85691029. The next prime is 85691051. The reversal of 85691034 is 43019658.

It is a self number, because there is not a number n which added to its sum of digits gives 85691034.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 625414 + ... + 625550.

It is an arithmetic number, because the mean of its divisors is an integer number (1782270).

Almost surely, 2^85691034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85691034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114065280).

85691034 is an abundant number, since it is smaller than the sum of its proper divisors (142439526).

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

85691034 is a wasteful number, since it uses less digits than its factorization.

85691034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 85691034 is about 9256.9451764608. The cubic root of 85691034 is about 440.8712660479.

The spelling of 85691034 in words is "eighty-five million, six hundred ninety-one thousand, thirty-four".