42677775 has 90 divisors (see below), whose sum is σ = 90304240. Its totient is φ = 19262880.

The previous prime is 42677759. The next prime is 42677777. The reversal of 42677775 is 57777624.

42677775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42677775 - 2⁴ = 42677759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42677775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42677777) 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 89 ways as a sum of consecutive naturals, for example, 540186 + ... + 540264.

Almost surely, 2^42677775 is an apocalyptic number.

42677775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42677775 is an abundant number, since it is smaller than the sum of its proper divisors (47626465).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42677775 is an equidigital number, since it uses as much as digits as its factorization.

42677775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 94 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The square root of 42677775 is about 6532.8228967270. The cubic root of 42677775 is about 349.4625083350.

The spelling of 42677775 in words is "forty-two million, six hundred seventy-seven thousand, seven hundred seventy-five".