85621406 has 16 divisors (see below), whose sum is σ = 138692400. Its totient is φ = 39408768.

The previous prime is 85621399. The next prime is 85621423. The reversal of 85621406 is 60412658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5510 + ... + 14198.

It is an arithmetic number, because the mean of its divisors is an integer number (8668275).

Almost surely, 2^85621406 is an apocalyptic number.

85621406 is a deficient number, since it is larger than the sum of its proper divisors (53070994).

85621406 is a wasteful number, since it uses less digits than its factorization.

85621406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9083.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 85621406 is about 9253.1835602672. The cubic root of 85621406 is about 440.7518241371.

The spelling of 85621406 in words is "eighty-five million, six hundred twenty-one thousand, four hundred six".