47985920 has 36 divisors (see below), whose sum is σ = 114944340. Its totient is φ = 19193856.

The previous prime is 47985911. The next prime is 47985953. The reversal of 47985920 is 2958974.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 14992384 = 5744^2 + 3872^2 .

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, 17465 + ... + 20024.

Almost surely, 2^47985920 is an apocalyptic number.

47985920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47985920 is an abundant number, since it is smaller than the sum of its proper divisors (66958420).

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

47985920 is an equidigital number, since it uses as much as digits as its factorization.

47985920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37510 (or 37496 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 47985920 is about 6927.1870192741. The cubic root of 47985920 is about 363.3885802886.

The spelling of 47985920 in words is "forty-seven million, nine hundred eighty-five thousand, nine hundred twenty".