47166920 has 16 divisors (see below), whose sum is σ = 106125660. Its totient is φ = 18866752.

The previous prime is 47166919. The next prime is 47166937. The reversal of 47166920 is 2966174.

It can be written as a sum of positive squares in 2 ways, for example, as 47141956 + 24964 = 6866^2 + 158^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589547 + ... + 589626.

Almost surely, 2^47166920 is an apocalyptic number.

47166920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47166920 is an abundant number, since it is smaller than the sum of its proper divisors (58958740).

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

47166920 is a wasteful number, since it uses less digits than its factorization.

47166920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179184 (or 1179180 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47166920 is about 6867.8177028806. The cubic root of 47166920 is about 361.3093268305.

The spelling of 47166920 in words is "forty-seven million, one hundred sixty-six thousand, nine hundred twenty".