85704478 has 8 divisors (see below), whose sum is σ = 135322920. Its totient is φ = 40596840.

The previous prime is 85704467. The next prime is 85704499. The reversal of 85704478 is 87440758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127653 + ... + 1127728.

It is an arithmetic number, because the mean of its divisors is an integer number (16915365).

Almost surely, 2^85704478 is an apocalyptic number.

85704478 is a deficient number, since it is larger than the sum of its proper divisors (49618442).

85704478 is a wasteful number, since it uses less digits than its factorization.

85704478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255402.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 85704478 is about 9257.6713054634. The cubic root of 85704478 is about 440.8943208262.

The spelling of 85704478 in words is "eighty-five million, seven hundred four thousand, four hundred seventy-eight".