85644601 has 12 divisors (see below), whose sum is σ = 100247952. Its totient is φ = 72952488.

The previous prime is 85644583. The next prime is 85644607. The reversal of 85644601 is 10644658.

It is not a de Polignac number, because 85644601 - 2⁷ = 85644473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85644607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2626 + ... + 13348.

It is an arithmetic number, because the mean of its divisors is an integer number (8353996).

Almost surely, 2^85644601 is an apocalyptic number.

It is an amenable number.

85644601 is a deficient number, since it is larger than the sum of its proper divisors (14603351).

85644601 is a wasteful number, since it uses less digits than its factorization.

85644601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10900 (or 10893 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85644601 is about 9254.4368278140. The cubic root of 85644601 is about 440.7916207099.

The spelling of 85644601 in words is "eighty-five million, six hundred forty-four thousand, six hundred one".