427863667 has 16 divisors (see below), whose sum is σ = 564820992. Its totient is φ = 313787520.

The previous prime is 427863649. The next prime is 427863691. The reversal of 427863667 is 766368724.

It is a cyclic number.

It is not a de Polignac number, because 427863667 - 2¹¹ = 427861619 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 427863667.

It is not an unprimeable number, because it can be changed into a prime (427863617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162123 + ... + 164740.

It is an arithmetic number, because the mean of its divisors is an integer number (35301312).

Almost surely, 2^427863667 is an apocalyptic number.

427863667 is a deficient number, since it is larger than the sum of its proper divisors (136957325).

427863667 is a wasteful number, since it uses less digits than its factorization.

427863667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326898.

The product of its digits is 2032128, while the sum is 49.

The square root of 427863667 is about 20684.8656510019. The cubic root of 427863667 is about 753.5321785421.

The spelling of 427863667 in words is "four hundred twenty-seven million, eight hundred sixty-three thousand, six hundred sixty-seven".