47870808 has 32 divisors (see below), whose sum is σ = 119925360. Its totient is φ = 15923840.

The previous prime is 47870807. The next prime is 47870813. The reversal of 47870808 is 80807874.

It is a super-2 number, since 2×47870808² = 4583228517145728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47870808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47870807) 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, 11578 + ... + 15158.

Almost surely, 2^47870808 is an apocalyptic number.

It is an amenable number.

47870808 is an abundant number, since it is smaller than the sum of its proper divisors (72054552).

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

47870808 is a wasteful number, since it uses less digits than its factorization.

47870808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 47870808 is about 6918.8733186842. The cubic root of 47870808 is about 363.0977736002.

The spelling of 47870808 in words is "forty-seven million, eight hundred seventy thousand, eight hundred eight".