47987900 has 18 divisors (see below), whose sum is σ = 104133960. Its totient is φ = 19195120.

The previous prime is 47987897. The next prime is 47987903. The reversal of 47987900 is 978974.

It is an interprime number because it is at equal distance from previous prime (47987897) and next prime (47987903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47987903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239840 + ... + 240039.

It is an arithmetic number, because the mean of its divisors is an integer number (5785220).

Almost surely, 2^47987900 is an apocalyptic number.

It is an amenable number.

47987900 is an abundant number, since it is smaller than the sum of its proper divisors (56146060).

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

47987900 is a wasteful number, since it uses less digits than its factorization.

47987900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479893 (or 479886 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 47987900 is about 6927.3299329540. The cubic root of 47987900 is about 363.3935782790.

The spelling of 47987900 in words is "forty-seven million, nine hundred eighty-seven thousand, nine hundred".