47485920 has 48 divisors (see below), whose sum is σ = 149582160. Its totient is φ = 12662784.

The previous prime is 47485901. The next prime is 47485927. The reversal of 47485920 is 2958474.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47485927) 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, 48985 + ... + 49944.

It is an arithmetic number, because the mean of its divisors is an integer number (3116295).

Almost surely, 2^47485920 is an apocalyptic number.

47485920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47485920 is an abundant number, since it is smaller than the sum of its proper divisors (102096240).

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

47485920 is a wasteful number, since it uses less digits than its factorization.

47485920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98947 (or 98939 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 47485920 is about 6891.0028297774. The cubic root of 47485920 is about 362.1220349015.

Subtracting from 47485920 its sum of digits (39), we obtain a square (47485881 = 6891²).

The spelling of 47485920 in words is "forty-seven million, four hundred eighty-five thousand, nine hundred twenty".