85784412 has 24 divisors (see below), whose sum is σ = 228758656. Its totient is φ = 24509808.

The previous prime is 85784381. The next prime is 85784429. The reversal of 85784412 is 21448758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510538 + ... + 510705.

Almost surely, 2^85784412 is an apocalyptic number.

It is an amenable number.

85784412 is an abundant number, since it is smaller than the sum of its proper divisors (142974244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85784412 is a wasteful number, since it uses less digits than its factorization.

85784412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021257 (or 1021255 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 85784412 is about 9261.9874756987. The cubic root of 85784412 is about 441.0313478778.

The spelling of 85784412 in words is "eighty-five million, seven hundred eighty-four thousand, four hundred twelve".