47169906 has 16 divisors (see below), whose sum is σ = 107817024. Its totient is φ = 13477104.

The previous prime is 47169853. The next prime is 47169907. The reversal of 47169906 is 60996174.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1123093 = 47169906 / (4 + 7 + 1 + 6 + 9 + 9 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (47169907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561505 + ... + 561588.

It is an arithmetic number, because the mean of its divisors is an integer number (6738564).

Almost surely, 2^47169906 is an apocalyptic number.

47169906 is an abundant number, since it is smaller than the sum of its proper divisors (60647118).

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

47169906 is a wasteful number, since it uses less digits than its factorization.

47169906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123105.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 47169906 is about 6868.0350901841. The cubic root of 47169906 is about 361.3169511491.

The spelling of 47169906 in words is "forty-seven million, one hundred sixty-nine thousand, nine hundred six".