85421535 has 8 divisors (see below), whose sum is σ = 136674480. Its totient is φ = 45558144.

The previous prime is 85421527. The next prime is 85421561. The reversal of 85421535 is 53512458.

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

It is not a de Polignac number, because 85421535 - 2³ = 85421527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85421496 and 85421505.

It is a congruent number.

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, 2847370 + ... + 2847399.

It is an arithmetic number, because the mean of its divisors is an integer number (17084310).

Almost surely, 2^85421535 is an apocalyptic number.

85421535 is a deficient number, since it is larger than the sum of its proper divisors (51252945).

85421535 is a wasteful number, since it uses less digits than its factorization.

85421535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694777.

The product of its digits is 24000, while the sum is 33.

The square root of 85421535 is about 9242.3771292888. The cubic root of 85421535 is about 440.4085994373.

The spelling of 85421535 in words is "eighty-five million, four hundred twenty-one thousand, five hundred thirty-five".