85434907 has 4 divisors (see below), whose sum is σ = 85453696. Its totient is φ = 85416120.

The previous prime is 85434863. The next prime is 85434913. The reversal of 85434907 is 70943458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70943458 = 2 ⋅35471729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85434907 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 85434907.

It is not an unprimeable number, because it can be changed into a prime (85434917) by changing a digit.

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, 2182 + ... + 13252.

It is an arithmetic number, because the mean of its divisors is an integer number (21363424).

Almost surely, 2^85434907 is an apocalyptic number.

85434907 is a deficient number, since it is larger than the sum of its proper divisors (18789).

85434907 is a wasteful number, since it uses less digits than its factorization.

85434907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18788.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 85434907 is about 9243.1005079465. The cubic root of 85434907 is about 440.4315789530.

The spelling of 85434907 in words is "eighty-five million, four hundred thirty-four thousand, nine hundred seven".