47951808 has 28 divisors (see below), whose sum is σ = 126873000. Its totient is φ = 15983872.

The previous prime is 47951791. The next prime is 47951809. The reversal of 47951808 is 80815974.

It is a self number, because there is not a number n which added to its sum of digits gives 47951808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124683 + ... + 125066.

Almost surely, 2^47951808 is an apocalyptic number.

47951808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47951808 is an abundant number, since it is smaller than the sum of its proper divisors (78921192).

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

47951808 is a wasteful number, since it uses less digits than its factorization.

47951808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249764 (or 249754 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 47951808 is about 6924.7243988479. The cubic root of 47951808 is about 363.3024519012.

The spelling of 47951808 in words is "forty-seven million, nine hundred fifty-one thousand, eight hundred eight".