85672406 has 16 divisors (see below), whose sum is σ = 139637760. Its totient is φ = 39272040.

The previous prime is 85672403. The next prime is 85672421. The reversal of 85672406 is 60427658.

It is a happy number.

It is a super-2 number, since 2×85672406² = 14679522299657672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 85672406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85672403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35186 + ... + 37541.

It is an arithmetic number, because the mean of its divisors is an integer number (8727360).

Almost surely, 2^85672406 is an apocalyptic number.

85672406 is a deficient number, since it is larger than the sum of its proper divisors (53965354).

85672406 is a wasteful number, since it uses less digits than its factorization.

85672406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72779.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 85672406 is about 9255.9389583121. The cubic root of 85672406 is about 440.8393173725.

The spelling of 85672406 in words is "eighty-five million, six hundred seventy-two thousand, four hundred six".