42628111 has 2 divisors, whose sum is σ = 42628112. Its totient is φ = 42628110.

The previous prime is 42628099. The next prime is 42628123. The reversal of 42628111 is 11182624.

It is a balanced prime because it is at equal distance from previous prime (42628099) and next prime (42628123).

It is a cyclic number.

It is not a de Polignac number, because 42628111 - 2⁷ = 42627983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42628171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21314055 + 21314056.

It is an arithmetic number, because the mean of its divisors is an integer number (21314056).

Almost surely, 2^42628111 is an apocalyptic number.

42628111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42628111 is an equidigital number, since it uses as much as digits as its factorization.

42628111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 42628111 is about 6529.0206769469. The cubic root of 42628111 is about 349.3268995579.

The spelling of 42628111 in words is "forty-two million, six hundred twenty-eight thousand, one hundred eleven".