427547166 has 16 divisors (see below), whose sum is σ = 855321600. Its totient is φ = 142477848.

The previous prime is 427547143. The next prime is 427547201. The reversal of 427547166 is 661745724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24195 + ... + 37953.

It is an arithmetic number, because the mean of its divisors is an integer number (53457600).

Almost surely, 2^427547166 is an apocalyptic number.

427547166 is an abundant number, since it is smaller than the sum of its proper divisors (427774434).

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

427547166 is a wasteful number, since it uses less digits than its factorization.

427547166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18943.

The product of its digits is 282240, while the sum is 42.

The square root of 427547166 is about 20677.2136904371. The cubic root of 427547166 is about 753.3463307770.

The spelling of 427547166 in words is "four hundred twenty-seven million, five hundred forty-seven thousand, one hundred sixty-six".