47161900 has 18 divisors (see below), whose sum is σ = 102341540. Its totient is φ = 18864720.

The previous prime is 47161897. The next prime is 47161921. The reversal of 47161900 is 916174.

47161900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47161900² = 4448489623220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235710 + ... + 235909.

Almost surely, 2^47161900 is an apocalyptic number.

It is an amenable number.

47161900 is an abundant number, since it is smaller than the sum of its proper divisors (55179640).

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

47161900 is a wasteful number, since it uses less digits than its factorization.

47161900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471633 (or 471626 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 47161900 is about 6867.4522204381. The cubic root of 47161900 is about 361.2965082621.

The spelling of 47161900 in words is "forty-seven million, one hundred sixty-one thousand, nine hundred".