47691980 has 24 divisors (see below), whose sum is σ = 114461088. Its totient is φ = 16351488.

The previous prime is 47691977. The next prime is 47691983. The reversal of 47691980 is 8919674.

It is an interprime number because it is at equal distance from previous prime (47691977) and next prime (47691983).

It is not an unprimeable number, because it can be changed into a prime (47691983) 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, 170189 + ... + 170468.

It is an arithmetic number, because the mean of its divisors is an integer number (4769212).

Almost surely, 2^47691980 is an apocalyptic number.

It is an amenable number.

47691980 is an abundant number, since it is smaller than the sum of its proper divisors (66769108).

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

47691980 is a wasteful number, since it uses less digits than its factorization.

47691980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340673 (or 340671 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 47691980 is about 6905.9380246278. The cubic root of 47691980 is about 362.6450755030.

The spelling of 47691980 in words is "forty-seven million, six hundred ninety-one thousand, nine hundred eighty".