4547988 has 36 divisors (see below), whose sum is σ = 11924640. Its totient is φ = 1515672.

The previous prime is 4547957. The next prime is 4548001. The reversal of 4547988 is 8897454.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368 + ... + 3311.

It is an arithmetic number, because the mean of its divisors is an integer number (331240).

Almost surely, 2^4547988 is an apocalyptic number.

It is an amenable number.

4547988 is an abundant number, since it is smaller than the sum of its proper divisors (7376652).

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

4547988 is a wasteful number, since it uses less digits than its factorization.

4547988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698 (or 4684 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 4547988 is about 2132.6012285470. The cubic root of 4547988 is about 165.6811511522.

The spelling of 4547988 in words is "four million, five hundred forty-seven thousand, nine hundred eighty-eight".