85505434 has 16 divisors (see below), whose sum is σ = 154296000. Its totient is φ = 34716384.

The previous prime is 85505419. The next prime is 85505437. The reversal of 85505434 is 43450558.

It is a super-2 number, since 2×85505434² = 14622358487056712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85505434.

It is not an unprimeable number, because it can be changed into a prime (85505437) 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 7 ways as a sum of consecutive naturals, for example, 160459 + ... + 160990.

It is an arithmetic number, because the mean of its divisors is an integer number (9643500).

Almost surely, 2^85505434 is an apocalyptic number.

85505434 is a deficient number, since it is larger than the sum of its proper divisors (68790566).

85505434 is a wasteful number, since it uses less digits than its factorization.

85505434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321477.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 85505434 is about 9246.9148368523. The cubic root of 85505434 is about 440.5527385414.

The spelling of 85505434 in words is "eighty-five million, five hundred five thousand, four hundred thirty-four".