85591401 has 16 divisors (see below), whose sum is σ = 130560000. Its totient is φ = 48858768.

The previous prime is 85591381. The next prime is 85591417. The reversal of 85591401 is 10419558.

It is not a de Polignac number, because 85591401 - 2⁷ = 85591273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85591421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30120 + ... + 32838.

It is an arithmetic number, because the mean of its divisors is an integer number (8160000).

Almost surely, 2^85591401 is an apocalyptic number.

It is an amenable number.

85591401 is a deficient number, since it is larger than the sum of its proper divisors (44968599).

85591401 is a wasteful number, since it uses less digits than its factorization.

85591401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 85591401 is about 9251.5620843185. The cubic root of 85591401 is about 440.7003327161.

The spelling of 85591401 in words is "eighty-five million, five hundred ninety-one thousand, four hundred one".