47542664 has 32 divisors (see below), whose sum is σ = 97446720. Its totient is φ = 21612096.

The previous prime is 47542661. The next prime is 47542681. The reversal of 47542664 is 46624574.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47542661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3557 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (3045210).

Almost surely, 2^47542664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47542664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48723360).

47542664 is an abundant number, since it is smaller than the sum of its proper divisors (49904056).

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

47542664 is a wasteful number, since it uses less digits than its factorization.

47542664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909 (or 6905 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 47542664 is about 6895.1188532178. The cubic root of 47542664 is about 362.2662185063.

The spelling of 47542664 in words is "forty-seven million, five hundred forty-two thousand, six hundred sixty-four".