85661342 has 8 divisors (see below), whose sum is σ = 138376056. Its totient is φ = 39535992.

The previous prime is 85661321. The next prime is 85661347. The reversal of 85661342 is 24316658.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85661347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647308 + ... + 1647359.

It is an arithmetic number, because the mean of its divisors is an integer number (17297007).

Almost surely, 2^85661342 is an apocalyptic number.

85661342 is a deficient number, since it is larger than the sum of its proper divisors (52714714).

85661342 is a wasteful number, since it uses less digits than its factorization.

85661342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294682.

The product of its digits is 34560, while the sum is 35.

The square root of 85661342 is about 9255.3412686945. The cubic root of 85661342 is about 440.8203394370.

The spelling of 85661342 in words is "eighty-five million, six hundred sixty-one thousand, three hundred forty-two".