85680074 has 8 divisors (see below), whose sum is σ = 129458628. Its totient is φ = 42527200.

The previous prime is 85680073. The next prime is 85680131. The reversal of 85680074 is 47008658.

It can be written as a sum of positive squares in 2 ways, for example, as 80227849 + 5452225 = 8957^2 + 2335^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85680073) 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, 156077 + ... + 156624.

Almost surely, 2^85680074 is an apocalyptic number.

85680074 is a deficient number, since it is larger than the sum of its proper divisors (43778554).

85680074 is a wasteful number, since it uses less digits than its factorization.

85680074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312840.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 85680074 is about 9256.3531695803. The cubic root of 85680074 is about 440.8524692347.

The spelling of 85680074 in words is "eighty-five million, six hundred eighty thousand, seventy-four".