85547829 has 16 divisors (see below), whose sum is σ = 116325504. Its totient is φ = 55910400.

The previous prime is 85547821. The next prime is 85547837. The reversal of 85547829 is 92874558.

It is an interprime number because it is at equal distance from previous prime (85547821) and next prime (85547837).

It is not a de Polignac number, because 85547829 - 2³ = 85547821 is a prime.

It is a super-2 number, since 2×85547829² = 14636862093226482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85547821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40069 + ... + 42149.

It is an arithmetic number, because the mean of its divisors is an integer number (7270344).

Almost surely, 2^85547829 is an apocalyptic number.

It is an amenable number.

85547829 is a deficient number, since it is larger than the sum of its proper divisors (30777675).

85547829 is a wasteful number, since it uses less digits than its factorization.

85547829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348.

The product of its digits is 806400, while the sum is 48.

The square root of 85547829 is about 9249.2069389759. The cubic root of 85547829 is about 440.6255376081.

It can be divided in two parts, 855 and 47829, that added together give a palindrome (48684).

The spelling of 85547829 in words is "eighty-five million, five hundred forty-seven thousand, eight hundred twenty-nine".