47969784 has 48 divisors (see below), whose sum is σ = 137563920. Its totient is φ = 15048960.

The previous prime is 47969783. The next prime is 47969809. The reversal of 47969784 is 48796974.

It is a happy number.

47969784 is a `hidden beast` number, since 479 + 6 + 97 + 84 = 666.

It is a super-2 number, since 2×47969784² = 4602200354013312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47969784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47969783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18372 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (2865915).

Almost surely, 2^47969784 is an apocalyptic number.

It is an amenable number.

47969784 is an abundant number, since it is smaller than the sum of its proper divisors (89594136).

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

47969784 is a wasteful number, since it uses less digits than its factorization.

47969784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39220 (or 39213 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 47969784 is about 6926.0222350206. The cubic root of 47969784 is about 363.3478440650.

The spelling of 47969784 in words is "forty-seven million, nine hundred sixty-nine thousand, seven hundred eighty-four".