47911000 has 32 divisors (see below), whose sum is σ = 112114080. Its totient is φ = 19164000.

The previous prime is 47910979. The next prime is 47911021. The reversal of 47911000 is 11974.

It is an interprime number because it is at equal distance from previous prime (47910979) and next prime (47911021).

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 7 ways as a sum of consecutive naturals, for example, 22956 + ... + 24955.

It is an arithmetic number, because the mean of its divisors is an integer number (3503565).

Almost surely, 2^47911000 is an apocalyptic number.

47911000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47911000 is an abundant number, since it is smaller than the sum of its proper divisors (64203080).

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

47911000 is a wasteful number, since it uses less digits than its factorization.

47911000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47932 (or 47918 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 47911000 is about 6921.7772284291. Note that the first 3 decimals coincide. The cubic root of 47911000 is about 363.1993633024.

Adding to 47911000 its reverse (11974), we get a palindrome (47922974).

The spelling of 47911000 in words is "forty-seven million, nine hundred eleven thousand".