427674139 has 4 divisors (see below), whose sum is σ = 430063560. Its totient is φ = 425284720.

The previous prime is 427674061. The next prime is 427674179. The reversal of 427674139 is 931476724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427674139 - 2⁷ = 427674011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427674095 and 427674104.

It is not an unprimeable number, because it can be changed into a prime (427674179) 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 3 ways as a sum of consecutive naturals, for example, 1194442 + ... + 1194799.

It is an arithmetic number, because the mean of its divisors is an integer number (107515890).

Almost surely, 2^427674139 is an apocalyptic number.

427674139 is a deficient number, since it is larger than the sum of its proper divisors (2389421).

427674139 is a wasteful number, since it uses less digits than its factorization.

427674139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389420.

The product of its digits is 254016, while the sum is 43.

The square root of 427674139 is about 20680.2838230040. The cubic root of 427674139 is about 753.4208996852.

The spelling of 427674139 in words is "four hundred twenty-seven million, six hundred seventy-four thousand, one hundred thirty-nine".