427539966 has 16 divisors (see below), whose sum is σ = 977234304. Its totient is φ = 122154264.

The previous prime is 427539961. The next prime is 427539967. The reversal of 427539966 is 669935724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427539961) 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, 5089720 + ... + 5089803.

It is an arithmetic number, because the mean of its divisors is an integer number (61077144).

Almost surely, 2^427539966 is an apocalyptic number.

427539966 is an abundant number, since it is smaller than the sum of its proper divisors (549694338).

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

427539966 is a wasteful number, since it uses less digits than its factorization.

427539966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179535.

The product of its digits is 2449440, while the sum is 51.

The square root of 427539966 is about 20677.0395850083. The cubic root of 427539966 is about 753.3421019071.

The spelling of 427539966 in words is "four hundred twenty-seven million, five hundred thirty-nine thousand, nine hundred sixty-six".