85434969 has 4 divisors (see below), whose sum is σ = 113913296. Its totient is φ = 56956644.

The previous prime is 85434967. The next prime is 85434997. The reversal of 85434969 is 96943458.

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.

It is not a de Polignac number, because 85434969 - 2¹ = 85434967 is a prime.

It is a super-2 number, since 2×85434969² = 14598267856061922, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85434967) 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, 14239159 + ... + 14239164.

It is an arithmetic number, because the mean of its divisors is an integer number (28478324).

Almost surely, 2^85434969 is an apocalyptic number.

It is an amenable number.

85434969 is a deficient number, since it is larger than the sum of its proper divisors (28478327).

85434969 is a wasteful number, since it uses less digits than its factorization.

85434969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28478326.

The product of its digits is 933120, while the sum is 48.

The square root of 85434969 is about 9243.1038617988. The cubic root of 85434969 is about 440.4316854932.

The spelling of 85434969 in words is "eighty-five million, four hundred thirty-four thousand, nine hundred sixty-nine".