47996578 has 12 divisors (see below), whose sum is σ = 83749302. Its totient is φ = 20569920.

The previous prime is 47996573. The next prime is 47996579. The reversal of 47996578 is 87569974.

It can be written as a sum of positive squares in only one way, i.e., 47155689 + 840889 = 6867^2 + 917^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47996573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244783 + ... + 244978.

Almost surely, 2^47996578 is an apocalyptic number.

47996578 is a deficient number, since it is larger than the sum of its proper divisors (35752724).

47996578 is a wasteful number, since it uses less digits than its factorization.

47996578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489777 (or 489770 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 47996578 is about 6927.9562642961. The cubic root of 47996578 is about 363.4154819908.

The spelling of 47996578 in words is "forty-seven million, nine hundred ninety-six thousand, five hundred seventy-eight".