85660429 has 8 divisors (see below), whose sum is σ = 87785280. Its totient is φ = 83541696.

The previous prime is 85660391. The next prime is 85660459. The reversal of 85660429 is 92406658.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85660429 - 2⁷ = 85660301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85660391 and 85660400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85660459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40992 + ... + 43030.

It is an arithmetic number, because the mean of its divisors is an integer number (10973160).

Almost surely, 2^85660429 is an apocalyptic number.

It is an amenable number.

85660429 is a deficient number, since it is larger than the sum of its proper divisors (2124851).

85660429 is a wasteful number, since it uses less digits than its factorization.

85660429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 85660429 is about 9255.2919456925. The cubic root of 85660429 is about 440.8187733069.

The spelling of 85660429 in words is "eighty-five million, six hundred sixty thousand, four hundred twenty-nine".