427700111 has 4 divisors (see below), whose sum is σ = 446295792. Its totient is φ = 409104432.

The previous prime is 427700107. The next prime is 427700123. The reversal of 427700111 is 111007724.

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 427700111 - 2² = 427700107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 18595657 = 427700111 / (4 + 2 + 7 + 7 + 0 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427700311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9297806 + ... + 9297851.

It is an arithmetic number, because the mean of its divisors is an integer number (111573948).

Almost surely, 2^427700111 is an apocalyptic number.

427700111 is a deficient number, since it is larger than the sum of its proper divisors (18595681).

427700111 is a wasteful number, since it uses less digits than its factorization.

427700111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18595680.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 427700111 is about 20680.9117545625. The cubic root of 427700111 is about 753.4361507449.

Adding to 427700111 its reverse (111007724), we get a palindrome (538707835).

The spelling of 427700111 in words is "four hundred twenty-seven million, seven hundred thousand, one hundred eleven".