47491100 has 18 divisors (see below), whose sum is σ = 103055904. Its totient is φ = 18996400.

The previous prime is 47491097. The next prime is 47491111. The reversal of 47491100 is 119474.

It is a self number, because there is not a number n which added to its sum of digits gives 47491100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237356 + ... + 237555.

It is an arithmetic number, because the mean of its divisors is an integer number (5725328).

Almost surely, 2^47491100 is an apocalyptic number.

It is an amenable number.

47491100 is an abundant number, since it is smaller than the sum of its proper divisors (55564804).

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

47491100 is a wasteful number, since it uses less digits than its factorization.

47491100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474925 (or 474918 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 47491100 is about 6891.3786719350. The cubic root of 47491100 is about 362.1352017795.

The spelling of 47491100 in words is "forty-seven million, four hundred ninety-one thousand, one hundred".