85072858 has 8 divisors (see below), whose sum is σ = 137425428. Its totient is φ = 39264384.

The previous prime is 85072853. The next prime is 85072859. The reversal of 85072858 is 85827058.

It can be written as a sum of positive squares in 2 ways, for example, as 69839449 + 15233409 = 8357^2 + 3903^2 .

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

It is not an unprimeable number, because it can be changed into a prime (85072853) 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 3 ways as a sum of consecutive naturals, for example, 1635991 + ... + 1636042.

Almost surely, 2^85072858 is an apocalyptic number.

85072858 is a deficient number, since it is larger than the sum of its proper divisors (52352570).

85072858 is a wasteful number, since it uses less digits than its factorization.

85072858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272048.

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 85072858 is about 9223.4948907667. The cubic root of 85072858 is about 439.8085565224.

The spelling of 85072858 in words is "eighty-five million, seventy-two thousand, eight hundred fifty-eight".