47640984 has 16 divisors (see below), whose sum is σ = 119102520. Its totient is φ = 15880320.

The previous prime is 47640977. The next prime is 47640991. The reversal of 47640984 is 48904674.

It is an interprime number because it is at equal distance from previous prime (47640977) and next prime (47640991).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992497 + ... + 992544.

Almost surely, 2^47640984 is an apocalyptic number.

It is an amenable number.

47640984 is an abundant number, since it is smaller than the sum of its proper divisors (71461536).

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

47640984 is a wasteful number, since it uses less digits than its factorization.

47640984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985050 (or 1985046 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 47640984 is about 6902.2448522202. The cubic root of 47640984 is about 362.5157732336.

The spelling of 47640984 in words is "forty-seven million, six hundred forty thousand, nine hundred eighty-four".