85434013 has 8 divisors (see below), whose sum is σ = 102777920. Its totient is φ = 69374880.

The previous prime is 85434007. The next prime is 85434023. The reversal of 85434013 is 31043458.

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

It is a cyclic number.

It is not a de Polignac number, because 85434013 - 2⁹ = 85433501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85434023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321048 + ... + 321313.

It is an arithmetic number, because the mean of its divisors is an integer number (12847240).

Almost surely, 2^85434013 is an apocalyptic number.

It is an amenable number.

85434013 is a deficient number, since it is larger than the sum of its proper divisors (17343907).

85434013 is a wasteful number, since it uses less digits than its factorization.

85434013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642387.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 85434013 is about 9243.0521474240. The cubic root of 85434013 is about 440.4300427066.

The spelling of 85434013 in words is "eighty-five million, four hundred thirty-four thousand, thirteen".