85434677 has 4 divisors (see below), whose sum is σ = 85471776. Its totient is φ = 85397580.

The previous prime is 85434653. The next prime is 85434691. The reversal of 85434677 is 77643458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77643458 = 2 ⋅38821729.

It is a cyclic number.

It is not a de Polignac number, because 85434677 - 2²⁰ = 84386101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85434607) 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, 14849 + ... + 19782.

It is an arithmetic number, because the mean of its divisors is an integer number (21367944).

Almost surely, 2^85434677 is an apocalyptic number.

It is an amenable number.

85434677 is a deficient number, since it is larger than the sum of its proper divisors (37099).

85434677 is a wasteful number, since it uses less digits than its factorization.

85434677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37098.

The product of its digits is 564480, while the sum is 44.

The square root of 85434677 is about 9243.0880662255. The cubic root of 85434677 is about 440.4311837228.

The spelling of 85434677 in words is "eighty-five million, four hundred thirty-four thousand, six hundred seventy-seven".