47021748 has 48 divisors (see below), whose sum is σ = 112116480. Its totient is φ = 15335424.

The previous prime is 47021719. The next prime is 47021749. The reversal of 47021748 is 84712074.

It is a super-2 number, since 2×47021748² = 4422089569951008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47021749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182836 + ... + 183092.

It is an arithmetic number, because the mean of its divisors is an integer number (2335760).

Almost surely, 2^47021748 is an apocalyptic number.

It is an amenable number.

47021748 is an abundant number, since it is smaller than the sum of its proper divisors (65094732).

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

47021748 is a wasteful number, since it uses less digits than its factorization.

47021748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 47021748 is about 6857.2405528755. The cubic root of 47021748 is about 360.9382623735.

The spelling of 47021748 in words is "forty-seven million, twenty-one thousand, seven hundred forty-eight".