427967279 has 8 divisors (see below), whose sum is σ = 447057792. Its totient is φ = 408917080.

The previous prime is 427967251. The next prime is 427967311. The reversal of 427967279 is 972769724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427967279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427967279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427967219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12752 + ... + 31914.

It is an arithmetic number, because the mean of its divisors is an integer number (55882224).

Almost surely, 2^427967279 is an apocalyptic number.

427967279 is a deficient number, since it is larger than the sum of its proper divisors (19090513).

427967279 is a wasteful number, since it uses less digits than its factorization.

427967279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20157.

The product of its digits is 2667168, while the sum is 53.

The square root of 427967279 is about 20687.3700358455. The cubic root of 427967279 is about 753.5929990640.

The spelling of 427967279 in words is "four hundred twenty-seven million, nine hundred sixty-seven thousand, two hundred seventy-nine".