85869956 has 24 divisors (see below), whose sum is σ = 153570816. Its totient is φ = 42002240.

The previous prime is 85869937. The next prime is 85869983. The reversal of 85869956 is 65996858.

85869956 = T₂₆₃ + T₂₆₄ + ... + T₈₁₀.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37805 + ... + 40011.

It is an arithmetic number, because the mean of its divisors is an integer number (6398784).

Almost surely, 2^85869956 is an apocalyptic number.

It is an amenable number.

85869956 is a deficient number, since it is larger than the sum of its proper divisors (67700860).

85869956 is a wasteful number, since it uses less digits than its factorization.

85869956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2417 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 56.

The square root of 85869956 is about 9266.6043403180. The cubic root of 85869956 is about 441.1778976261.

The spelling of 85869956 in words is "eighty-five million, eight hundred sixty-nine thousand, nine hundred fifty-six".