427142947 has 18 divisors (see below), whose sum is σ = 546165564. Its totient is φ = 332834040.

The previous prime is 427142939. The next prime is 427142977. The reversal of 427142947 is 749241724.

It is a happy number.

It is not a de Polignac number, because 427142947 - 2³ = 427142939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427142917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30093 + ... + 41950.

Almost surely, 2^427142947 is an apocalyptic number.

427142947 is a deficient number, since it is larger than the sum of its proper divisors (119022617).

427142947 is a wasteful number, since it uses less digits than its factorization.

427142947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72079 (or 72061 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 427142947 is about 20667.4368754328. The cubic root of 427142947 is about 753.1088420332.

The spelling of 427142947 in words is "four hundred twenty-seven million, one hundred forty-two thousand, nine hundred forty-seven".