85457870 has 8 divisors (see below), whose sum is σ = 153824184. Its totient is φ = 34183144.

The previous prime is 85457863. The next prime is 85457887. The reversal of 85457870 is 7875458.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4272884 + ... + 4272903.

It is an arithmetic number, because the mean of its divisors is an integer number (19228023).

Almost surely, 2^85457870 is an apocalyptic number.

85457870 is a deficient number, since it is larger than the sum of its proper divisors (68366314).

85457870 is a wasteful number, since it uses less digits than its factorization.

85457870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545794.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 85457870 is about 9244.3425942573. The cubic root of 85457870 is about 440.4710348176.

The spelling of 85457870 in words is "eighty-five million, four hundred fifty-seven thousand, eight hundred seventy".