85641901 has 8 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 82587120.

The previous prime is 85641893. The next prime is 85641929. The reversal of 85641901 is 10914658.

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 85641901 - 2³ = 85641893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85641991) 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, 34500 + ... + 36898.

It is an arithmetic number, because the mean of its divisors is an integer number (11088000).

Almost surely, 2^85641901 is an apocalyptic number.

It is an amenable number.

85641901 is a deficient number, since it is larger than the sum of its proper divisors (3062099).

85641901 is a wasteful number, since it uses less digits than its factorization.

85641901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 85641901 is about 9254.2909506888. The cubic root of 85641901 is about 440.7869885834.

The spelling of 85641901 in words is "eighty-five million, six hundred forty-one thousand, nine hundred one".