47422172 has 12 divisors (see below), whose sum is σ = 94844400. Its totient is φ = 20323776.

The previous prime is 47422153. The next prime is 47422189. The reversal of 47422172 is 27122474.

47422172 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 846797 + ... + 846852.

It is an arithmetic number, because the mean of its divisors is an integer number (7903700).

Almost surely, 2^47422172 is an apocalyptic number.

It is an amenable number.

47422172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47422172 is a wasteful number, since it uses less digits than its factorization.

47422172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693660 (or 1693658 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 47422172 is about 6886.3758247717. The cubic root of 47422172 is about 361.9599174203.

The spelling of 47422172 in words is "forty-seven million, four hundred twenty-two thousand, one hundred seventy-two".