85521734 has 8 divisors (see below), whose sum is σ = 128323440. Its totient is φ = 42747256.

The previous prime is 85521721. The next prime is 85521743. The reversal of 85521734 is 43712558.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 85521694 and 85521703.

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 3 ways as a sum of consecutive naturals, for example, 5492 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (16040430).

Almost surely, 2^85521734 is an apocalyptic number.

85521734 is a deficient number, since it is larger than the sum of its proper divisors (42801706).

85521734 is a wasteful number, since it uses less digits than its factorization.

85521734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614.

The product of its digits is 33600, while the sum is 35.

The square root of 85521734 is about 9247.7961698991. The cubic root of 85521734 is about 440.5807311225.

The spelling of 85521734 in words is "eighty-five million, five hundred twenty-one thousand, seven hundred thirty-four".