85436475 has 48 divisors (see below), whose sum is σ = 151142112. Its totient is φ = 42434560.

The previous prime is 85436447. The next prime is 85436479. The reversal of 85436475 is 57463458.

It is not a de Polignac number, because 85436475 - 2⁵ = 85436443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85436479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143779 + ... + 144371.

It is an arithmetic number, because the mean of its divisors is an integer number (3148794).

Almost surely, 2^85436475 is an apocalyptic number.

85436475 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

85436475 is a deficient number, since it is larger than the sum of its proper divisors (65705637).

85436475 is a wasteful number, since it uses less digits than its factorization.

85436475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 731 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 85436475 is about 9243.1853275805. The cubic root of 85436475 is about 440.4342733727.

The spelling of 85436475 in words is "eighty-five million, four hundred thirty-six thousand, four hundred seventy-five".