85437415 has 16 divisors (see below), whose sum is σ = 118336320. Its totient is φ = 58003200.

The previous prime is 85437413. The next prime is 85437421. The reversal of 85437415 is 51473458.

It is not a de Polignac number, because 85437415 - 2¹ = 85437413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85437413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8550 + ... + 15619.

It is an arithmetic number, because the mean of its divisors is an integer number (7396020).

Almost surely, 2^85437415 is an apocalyptic number.

85437415 is a deficient number, since it is larger than the sum of its proper divisors (32898905).

85437415 is a wasteful number, since it uses less digits than its factorization.

85437415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24282.

The product of its digits is 67200, while the sum is 37.

The square root of 85437415 is about 9243.2361757125. The cubic root of 85437415 is about 440.4358886340.

The spelling of 85437415 in words is "eighty-five million, four hundred thirty-seven thousand, four hundred fifteen".