85728074 has 8 divisors (see below), whose sum is σ = 129335940. Its totient is φ = 42616096.

The previous prime is 85728073. The next prime is 85728077. The reversal of 85728074 is 47082758.

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 13359025 = 8507^2 + 3655^2 .

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 (85728073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123539 + ... + 124230.

Almost surely, 2^85728074 is an apocalyptic number.

85728074 is a deficient number, since it is larger than the sum of its proper divisors (43607866).

85728074 is a wasteful number, since it uses less digits than its factorization.

85728074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247944.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 85728074 is about 9258.9456203177. The cubic root of 85728074 is about 440.9347791859.

The spelling of 85728074 in words is "eighty-five million, seven hundred twenty-eight thousand, seventy-four".