47447080 has 32 divisors (see below), whose sum is σ = 108225000. Its totient is φ = 18717696.

The previous prime is 47447077. The next prime is 47447107. The reversal of 47447080 is 8074474.

It can be written as a sum of positive squares in 4 ways, for example, as 40883236 + 6563844 = 6394^2 + 2562^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205 + ... + 11044.

Almost surely, 2^47447080 is an apocalyptic number.

47447080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47447080 is an abundant number, since it is smaller than the sum of its proper divisors (60777920).

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

47447080 is a wasteful number, since it uses less digits than its factorization.

47447080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16333 (or 16329 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 47447080 is about 6888.1840858096. The cubic root of 47447080 is about 362.0232782157.

The spelling of 47447080 in words is "forty-seven million, four hundred forty-seven thousand, eighty".