85288407 has 4 divisors (see below), whose sum is σ = 113717880. Its totient is φ = 56858936.

The previous prime is 85288381. The next prime is 85288417. The reversal of 85288407 is 70488258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85288407 - 2⁷ = 85288279 is a prime.

It is a super-2 number, since 2×85288407² = 14548224737195298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85288417) 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, 14214732 + ... + 14214737.

It is an arithmetic number, because the mean of its divisors is an integer number (28429470).

Almost surely, 2^85288407 is an apocalyptic number.

85288407 is a deficient number, since it is larger than the sum of its proper divisors (28429473).

85288407 is a wasteful number, since it uses less digits than its factorization.

85288407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28429472.

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 85288407 is about 9235.1722777650. The cubic root of 85288407 is about 440.1796907249.

The spelling of 85288407 in words is "eighty-five million, two hundred eighty-eight thousand, four hundred seven".