47698920 has 96 divisors (see below), whose sum is σ = 159255720. Its totient is φ = 12372480.

The previous prime is 47698919. The next prime is 47698933. The reversal of 47698920 is 2989674.

It is a happy number.

47698920 is a `hidden beast` number, since 476 + 98 + 92 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47692836 + 6084 = 6906^2 + 78^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11530 + ... + 15110.

Almost surely, 2^47698920 is an apocalyptic number.

47698920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47698920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79627860).

47698920 is an abundant number, since it is smaller than the sum of its proper divisors (111556800).

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

47698920 is a wasteful number, since it uses less digits than its factorization.

47698920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3628 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 47698920 is about 6906.4404724865. The cubic root of 47698920 is about 362.6626650065.

It can be divided in two parts, 4769 and 8920, that added together give a square (13689 = 117²).

The spelling of 47698920 in words is "forty-seven million, six hundred ninety-eight thousand, nine hundred twenty".