85401385 has 8 divisors (see below), whose sum is σ = 102806856. Its totient is φ = 68104320.

The previous prime is 85401377. The next prime is 85401413. The reversal of 85401385 is 58310458.

It can be written as a sum of positive squares in 4 ways, for example, as 374544 + 85026841 = 612^2 + 9221^2 .

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

It is not a de Polignac number, because 85401385 - 2³ = 85401377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85401385.

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, 25356 + ... + 28525.

It is an arithmetic number, because the mean of its divisors is an integer number (12850857).

Almost surely, 2^85401385 is an apocalyptic number.

It is an amenable number.

85401385 is a deficient number, since it is larger than the sum of its proper divisors (17405471).

85401385 is a wasteful number, since it uses less digits than its factorization.

85401385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54203.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 85401385 is about 9241.2869774723. The cubic root of 85401385 is about 440.3739675335.

The spelling of 85401385 in words is "eighty-five million, four hundred one thousand, three hundred eighty-five".